Here are some Christmas presents, ____you can choose one for yourself.

A．in which

B．from which

C．between which

D．through which

产品质量义务分为积极义务和消极义务，“生产者不得伪造产地，不得伪造或者冒用他人的厂名、厂址”属于产品生产者的积极义务。