“I don’t think it’s my ________ that the TV blew up (爆炸). I just turned it on, that’s all,” said the boy.

A．error

B．mistake

C．fault

D．duty

据报道，某市一位7岁女孩乘公交车时，身高已达到购票标准，但母亲没为其买票。 女孩得知后，第二天早晨找到乘务员，将一元钱投入票款箱。说明这位女孩[ ]

A．诚实守信   

B．自尊心强   

C．多此一举   

D．胆小怕事