Reading Comprehension (RC) | Re: GMATPREP ChallengeQ - Historians have identified two dominant currents

Would anyone please explain question 3 ; how can I be able to eliminate the option C for that despite getting notion from " In fact, at the First All-Russian Women's Congress in 1908, most participants advocated maternity insurance and paid maternity leave, although the intense hostility between some socialists and bourgeois feminists at the Congress made it difficult for them to recognize these areas of agreement. "

For question 2 ' Should ' - Extreme word but taken as correct.

Thanks
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