Every weekend my younger brother will go to help the old man far away my house,for which he often received some            from the old man,such as a pencil and some sugar.

A．awards

B．honors

C．helps

D．rewards

某晚，付某潜入陈某家中行窃，被发现后携所窃赃物（价值2500余元）逃跑，陈某紧追不舍。付某见路旁有一辆未熄火摩托车（价值5000元），车主正与人交谈，便推倒车主，自己骑上摩托车继续逃跑。3日后，车主在街上发现自己的摩托车和付某，欲将其扭送公安局，付某一拳将车主打伤，后经法医鉴定为轻伤。付某的行为构成（）。

A.抢劫罪

B.抢夺罪

C.盗窃罪

D.故意伤害罪