Spellings

Duplication means the process or result of duplicating. The correct spelling is D-U-P-L-I-C-A-T-I-O-N with 'l' not 'p' in the middle. Option B is correct - it follows 'duplicate' + 'ion'.

Drunkard means a person who is habitually drunk. The correct spelling is D-R-U-N-K-A-R-D with 'u' not 'a' after 'd'. Option A is correct - it comes from 'drunk' + '-ard'.

The correct spelling is 'Disproved' - past tense of 'disprove' formed by adding '-ed' to the base verb. Options A, B, and D add incorrect prefixes or extra vowels.

The correct spelling is 'Disregard' - to pay no attention to. Options B, C, and D incorrectly insert extra vowels ('e', 'i') into the middle of the word.

The correct spelling is 'Disseminate' - to scatter or spread widely. It requires double 's' after 'Dis' because the root is 'seminal' (from Latin seminare), not 'simulate'. Option A uses single 's', while C and D change the vowel.

Classified is the correct spelling of the word. Option A is correct. Options B, C, and D are misspelled versions with missing letters (Clasifed, Clasfied, Calssfied).

Citizenship is the correct spelling of the word meaning the status of being a citizen. Option B is correct. Options A, C, and D contain misspellings with incorrect letter combinations (Citiznenship, Citzneship, Cetizneship).

Cistern is the correct spelling of the word for a tank for storing water, especially rainwater. Option A is correct. Options B, C, and D are misspelled with incorrect letter arrangements (Csitren, Cestren, Cistren).

Claimant is the correct spelling for a person making a claim. The word follows standard English spelling rules with 'ai' after 'Cl'. Options like Clament, Cliamnet, and Climent incorrectly substitute or rearrange letters.

Civilian is the correct spelling for a person not in the armed forces or police. The word maintains 'il' after 'Civ' and 'ian' at the end. Options like Civlan, Civilen, and Civilain have incorrect letter arrangements.

Cleanliness is the correct spelling for the state of being clean. It uses 'ea' after 'Cl' and 'iness' at the end. Options like Clenleness, Clanlines, and Clianlness misspell key parts of the word.

Coagulation is the correct spelling for the process of blood becoming solid. It uses 'oa' after 'C' and 'gu' before 'lation'. Options like Cagulation, Cogulation, and Coaulation misspell the beginning or omit the 'u'.

Coccidiosis is the correct spelling for a parasitic disease. It uses 'occ' twice, 'ii' in the middle, and ends with 'osis'. Options like Coccidioses, Cocidiosis, and Coccodiosis incorrectly modify the vowel pattern or omit a letter.

Cognomen is the correct spelling for a surname or family name. It uses 'og' after 'C' and 'men' at the end. Options like Congomen, Cogonmen, and Cegnomen have incorrect vowel placements or arrangements.

Collective is the correct spelling for done by people acting as a group. It uses 'o' after 'C', 'll' in the middle, and 'ective' at the end. Options like Coletive, Collcetive, and Colective miss the double 'l' or have other errors.