In which of the following sentences， the word become means "happen to often in a bad way"？

In which of the following sentences， the word become means "happen to often in a bad way"？
A、I don"t know what will become of us if the company goes bankrupt.
B、She became increasingly anxious about her son"s strange behavior.
C、This sort of behavior hardly becomes a person in your position.
D、Daydreams have become realities.
正确答案：A