I believe the answer would be the <em>third option, 70.</em>
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.
<span>people were exploring the dark part of human nature and we were increasingly self-aware</span>
Lincolns Ten Percent Plan required that 10% of its voters swear loyalty to the U.S. in order to form a new government.