Answer is this
D-the author is speculating but not proving concrete evidence
The theme of the piece would be women are suffering and there does not seem to be any relief in sight. The only plausible answer is option A or option B, but the words 'they are more patient' in option A is a little bit of unsupported generalization rather than a theme, so i'd pick B.
hope this helps
“There is a waterbottle in the school playground”