It can be inferred from the 2009 survey that______.A．half of college students hold credit

It can be inferred from the 2009 survey that______.

A．half of college students hold credit cards

B．students will no longer get credit cards

C．over 4/5 college students have debt difficulties

D．tuition is too high for most of the college students

请帮忙给出正确答案和分析，谢谢！