Based on the question given this is the answer:
He thinks she is worried but optimistic about her husband's
health.
In the central theme of the story, it is given a fact that
the belief of superstitions is something to be afraid of, although people have
taken a wise decision to trust on medicinal treatments.
In revision A, if you read the sentence out loud you will see that it doesn't flow very well.
In revision B, the semicolon is used incorrectly. Semicolons are used to connect two independent clauses. The second sentence (the one after the semicolon) is actually a dependent clause since it's a sentence that can't stand on its own.
In revision D, the sentence is a fragment.
The correct revision is answer choice C.
I think it would be A, to appeal to modern day audiences.
Back then women were not as respected and physically capable as men. However women now can do most if not all jobs than men can do. So a hero who doesn’t treat women like they are still incapable may be more appealing than a hero who treats women like children in modern day. (Back then it would have been acceptable or liked)