The correct option is
A I only
Look at these lines from the third paragraph -
“with them the chances for a distinctive contribution to humanistic understanding, a contribution that might be an important influence against sexism in our society.”
So definitely (I) is true.
Look at these lines from the last paragraph-
“If she wishes to construct a theory of feminist criticism, she would be well advised to place it within the framework of a general theory”
The author states that women literary critics must place her theory within the framework of a general theory. He does not advise them to develop a new theory.
So (II) is wrong.
The following lines from the third paragraph
“women scholars—only now entering the academic profession in substantial numbers”
Make (III) a very good option. But option III states that “Earlier, there were very few women in academic profession “
We know that women are entering in great numbers now. That does not indicate that there were very few women earlier in academic profession.
So (III) is also wrong. The correct answer is (a).