【单选题】

He asked the question not so much because of his curiousity as because of his desire for knowledge.
A．他问这个问题不是出于求知欲而是出于好奇心。

B．他提出这个问题与其说是出于好奇心不如说是出于求知欲
C．他问这个问题不是出于好奇心而是出于对知识的渴望，
D．因为对知识的渴望与好奇，他问了这个问题。