The children _________ for the accident. After all, they were so young.

A．should not be to blame

B．not to be blamed

C．were not to blame

D．were to not blame

甲的一头牛走失，乙牵回关人自家牛棚，准备次日寻找失主。当晚牛棚被台风刮倒，将牛压死。乙将牛肉和牛皮出售，各得款500元和100元。请人屠宰及销售，支出100元。下列哪一种说法是正确的

A．甲有权要求乙返还一头同样的牛

B．甲有权要求乙返还500元

C．甲有权要求乙返还600元

D．甲有权要求乙按该牛的市价赔偿1000元