In order to find theme look for what the story is trying to teach you. You could also look for the life story the author included.
Answer:
A). Betty.
Explanation:
'The Crucible' authored by Arthur Miller displays the 'Salem witch trials' during the late seventeenth century.
As per the question, 'Betty' is the one who becomes unconscious at the end of the act I when she joins the girls dancing in the forest along with Tituba that leads her almost to a 'coma like state'. She actually gets trapped into an unusual torpor that is responsible for her unconscious state and hysteria that she suffers which substantiates the presence of witchcraft in the town. Thus, <u>option A</u> is the correct answer.