The teacher said, "My son had the same experience as the little boy."

The teacher said that his son had __ the same experience as the little boy. [ ]

A. been      

B. have

C. had      

D. done

请用不超过200字的篇幅概括给定资料的主要内容。
要求：概括准确，条理清楚，语言流畅。