Spellings

GUYANA is the correct spelling of the South American country. The other options are misspelled: GUYENAA (extra A), GUYENNA (EN instead of AN, extra A), GUYENA (missing one A). The country name is pronounced with two distinct A sounds at the end.

UGANDA is the correct spelling of the East African country. The other options contain errors: UAGANDA (AG instead of GA), UGUNDA (U instead of A), and UGANNDA (extra N). This tests attention to letter order and avoiding doubled consonants where they don't belong.

SYRIA is the correct spelling of the Middle Eastern country. The incorrect options use Y instead of Y: SURIYA (U instead of Y in middle), SIRIA (I instead of Y), and SIRYA (both errors). The name begins with SY and contains only one Y.

ECUADOR is the correct spelling of the South American country. The other options have errors: ECUADOOR (extra O), EQUADORR (extra R at end), and EQUADOR (QUA instead of CUA). The correct sequence is CUA not QUA, with no doubled letters.

CAMEROON is the correct spelling of the West African country. The misspelled options are: KAMRON (starts with K, missing vowels), CAMRON (missing E and O), and CAMROON (E and R swapped). The name has two consecutive O's at the end and contains E before R.

YUGOSLAVIA is the correct spelling of this former European country. Options A and B incorrectly omit or transpose letters (YUGSLAVIA, UGOSLAVIA), while option D adds an extra O (UGOOSLVIA).

SWEDEN is the correct spelling of this Nordic country. Options A, C, and D all incorrectly modify the vowel sounds (SWEEDAN, SWEDAAN, SWIDAN) or add extra letters.

BURUNDI is the correct spelling of this East African country. Options A, B, and D introduce spelling errors with incorrect consonant substitutions (BRANDI, BRUNDI, BURONDI).

ETHIOPIA is the correct spelling of this Horn of Africa country. Options A, C, and D contain significant spelling errors with incorrect vowel patterns and extra letters (ETHIPIA, ETHEEIPIA, ETHOPIIA).

'Effective' is the correct spelling. The word derives from 'effect' and follows standard English spelling rules with double 'f' followed by '-ive'. 'Efective' is misspelled (missing one 'f'), and 'effactive' is an incorrect formation mixing 'effective' with 'active'. 'None' is incorrect since there is a valid option.

Sincerely is the correct spelling, derived from sincere + -ly. Sincirily and sincereally are incorrect phonetic spellings. Since only one option is correct, 'all of the above' cannot be the answer.

Achieve is the correct spelling, from achievement minus -ment. Archivee is incorrect (archive is different), achive is missing the 'e', and acheeve has an extra 'e'. The pattern is i-e-v-e, not i-e-e-v-e.

Quarrying is the correct spelling - it means extracting stone from a quarry. The word keeps the double 'r' from quarry and adds -ing. Qaring and quaryiing are incorrect formations.

Illicit is the correct spelling meaning unlawful or forbidden. Ellicit would be pronounced differently, ilicit is missing an 'l', and illiccit has an extra 'c'. Illicit begins with i-l-l, not e-l.

Strengthening is the correct spelling - formed from strength + -ening. The base is strength (with 'th'), and the suffix is -ening, making strengthening. This is a valid English word.