Neither First Lady Eleanor Roosevelt nor Secretary of Labor Frances Perkins sought recognition by the press, and both cautiously allowed others of the Roosevelt brain trust[*]to take credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they had been responsible for[*]
A. to take credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they had been responsible for
Here, that - essential modifier - modifies security. In that case were is wrong. If we want to consider that modifies programs , there should be a valid and strong reason . Still there is ambiguity.
B. to take credit for the genesis of historic programs in public employment, relief, and social security for which the two women were in large measure responsible
No errors. For which refers back to genesis
C d and E can be easily eliminated based on the usage of present participle taking. Here, taking modifies trust . THat mens trust takes credit. As per meaning , others to take credit but not trust.
C. taking credit for the genesis of historic programs in public employment, relief, and social security for which the two women were in large measure responsible
D. taking credit for the genesis of historic programs in public employment, relief, and social security that were in large measure what they were responsible for
E. taking credit for the genesis of historic programs in public employment, relief, and social security which were largely their responsibility
So, our answer choice is B
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