问题详情

"They vault over technical fixes as fast as the hurdles are erected"(Para. 1)probably means that hackers

A．are constantly trying to overcome technical problems.

B．immediately find a way to break into others" computers.

C．get excited to fix technical problems they have faced.

D．tend to install technical barriers in others" computers.

请帮忙给出正确答案和分析，谢谢！