问题详情

In some big cities in American, there are three or four elementary schools and secondary schools, ______.

A．with each within one"s walking or cycling distance

B．each within one"s walking or cycling distance

C．it is within one"s walking or cycling distance

D．with each that is within one"s walking or cycling distance

请帮忙给出正确答案和分析，谢谢！