You __________a good language learner if you keep practicing.[      ]

A. will become    

B. have become

C. became        

D. become

贾其骑摩托车违章撞伤田某，造成田某腿部表皮破裂。贾某送田某到医院治疗，护士未作皮试，即给田某注射破伤风针，田某因药物过敏而死。贾某的行为对田某死亡而言属于( )。

A．过失杀人罪

B．过失的重伤罪

C．交通肇事罪

D．意外事件