Directions: Select the two answer choices that, when used to complete the sentence, fit the meaning of the sentence as a whole and produce completed sentences that are alike in meaning.

However, they believe he fails to offer a _______ analysis with substantiated proof, and thus, classrooms today are reluctant to receive Galbraith's opinions as facts.

(1) This is incorrect as the sentence talks about the lack of 'substantiated' roof in Galbraith's opinions. 'Cogent' and 'pithy' convey the meaning - concise. Concise will not substantiate an analysis. (2) This is incorrect as it talks of summing up or adding up the analysis. We need a word that is similar in meaning to 'substantiated'. (3) This is correct as the sentence talks about the lack of 'substantiated' roof in Galbraith's opinions. 'Statistical' and number based or 'numerical' proofs would have lent more weight to Galbraith's theories. (4) This is incorrect as it talks of accruing/ summing up or adding up the analysis. We need a word that is similar in meaning to 'substantiated'. (5) This is correct as the sentence talks about the lack of 'substantiated' roof in Galbraith's opinions. 'Statistical' and number based or 'numerical' proofs would have lent more weight to Galbraith's theory. (6) This is incorrect as the sentence talks about the lack of 'substantiated' roof in Galbraith's opinions. 'Cogent' and 'pithy' convey the meaning - concise. Concise analysis will not substantiate an analysis.