Many children，______ parents are away working in big cities，are taken good care of in the village.

A．their

B．whose

C．of them

D．with whom

按照《贷款风险分类指导原则》，对贷款进行风险分类后，按每笔贷款损失的程度计提的用于弥补专项损失的准备。对于可疑类贷款，计提比例为（）。

A、20%

B、25%

C、50%

D、75%