Once a great boxer  , Tom Brown, went to a restaurant for dinner. He put his bag near the door, but he was afraid that someone would take it. So he got out a pen and a piece of paper and wrote on it: "The great boxer, Tom Brown, left his bag here. He'll come back in a few minutes. " He put the paper on his bag and went to have his dinner. When he came back, his bag wasn't there. But he found a piece of paper on the ground. It said: "A great runner took away your bag, and he will not come back. " When Mr Brown came back he   _  .
found another piece of paper on the ground found his bag wasn't there both A and B saw the runner running after him
Question: Once a great boxer  , Tom Brown, went to a restaurant for dinner. He put his bag near the door, but he was afraid that someone would take it. So he got out a pen and a piece of paper and wrote on it: "The great boxer, Tom Brown, left his bag here. He'll come back in a few minutes. " He put the paper on his bag and went to have his dinner. When he came back, his bag wasn't there. But he found a piece of paper on the ground. It said: "A great runner took away your bag, and he will not come back. " When Mr Brown came back he   _  .
A. found another piece of paper on the ground
B. found his bag wasn't there
C. both A and B
D. saw the runner running after him
Answer: