Part a in speech 29, the stage directions say that carmody is "thoroughly frightened" what even in the plot has frightened him? play: the straw.

Carmody is startled when Gaynor threatens to report to the Society for Tuberculosis Prevention that Carmpdy refuses to let his daughter be treated at a sanatorium.

Explanation:

The Straw is a play written by Eugene O'Neill. The play tells the story of Eileen Carmody and her tragedy in a sanatorium to treat tuberculosis, a disease that is very strong in her. At the beginning of the play, Eillen's father, Bill Carmody, refuses to let his daughter go to the sanatorium because she is needed at home. However, Dr. Gaynor, seeing the situation of the girl says that if her father does not allow her to go to the sanatorium, he will be reported to the Society for the Prevention of Tuberculosis, because his daughter needs help and he is refusing to allow her to be helped. At this point Bill Carmody is frightened by the threat of being denounced.

a, b, and c are all correct.