Woman: I hear that our boss donated a lot of money to the No. 3 Middle School. Man: A lot of money That's only a drop in the bucket. The sum of money he gave is only chickenfeed. Question: What does the man mean
A．The boss didn't get a lot of money. B．The boss didn't give a lot of money. C．The money the boss gave was hardly enough. D．The boss made a contribution for a chicken farm.