It is either A or D, I would go with A just to be on the safe side, cause D seems a tiny bit unorthodox
Answer: it's either b or c by the context clues
Explanation:
The sentence I would choose is: "He was looking down at his outstretched hands as he talked". To me, it implies that he cannot look into the eyes of the person he is speaking to, as if he doesn't feel he is worthy.