问题

most of us considered solving the problem as soon as possible, he considered itof no importance
A:The old man knows the elephant
B:The old man once saw the elephant
C:The old man can take care of the elephant
D:The old man is full of experience
B:The old man once saw the elephant
C:The old man can take care of the elephant
D:The old man is full of experience
正确答案是: