he didn't think people() much attention to their clothing at that time A pay B paid

he didn't think people() much attention to their clothing at that time A pay B paid
he didn't think people() much attention to their clothing at that time A pay B paid

he didn't think people() much attention to their clothing at that time A pay B paid
B
时态要一致,主句是didn't think,一般过去时,从句也要用过去时态

选B。前面主句过去式，后面用过去的相应的时态。