Mac positioned her hands and tried to think . Her head was full of Neville right now . She just started playing . Hera had come in for a butterbeer , but when the piano playing started , she nearly dropped her bottle .

Question: What does Mac seem to be apprehensive in playing the piano at first ?
Answer: None of the above choices .She had not played the piano in this bar before .Her mind is on thoughts of another person while she is trying to perform .She was trying to think of what her hands should be doing .