15. 198 people participated in a questionnaire survey, among which 149 people agreed with the first proposal, and 119 people agreed with the second proposal. If exactly 29 people did not agree with either proposal, then ( ) people agreed with both proposals.
(A) 49
(B) 70
(C) 79
(D) 99
(E) 149
15. D.
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149+119-(198-29)=99
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