Read the excerpt from Roll of Thunder, Hear My Cry.
I had gotten as far west as the Dakotas when my silent recitation was disturbed by a tapping on the porch. I lay very still. Mr. Morrison never made sounds like that.
Which detail from the excerpt best helps the reader determine a tone of alarm?
(A) I had gotten as far west as the Dakotas
(B) my silent recitation
(C) a tapping on the porch
(D) Mr. Morrison never made sounds like that.