This sweater fits me, but I can't afford to buy ________. I have to choose ________ which is cheap

enough for me.[ ]

A. it; that 

B. that; it

C. it; one 

D. that; the one

电器柜内配线横平竖直。成排成束的导线应用线夹可靠地固定，线夹与导线间应裹有绝缘。