Thank you for your enquiry of March 8, we also confirm ____ your

Thank you for your enquiry of March 8, we also confirm ____ your sample.
A、having received
B、to receive
C、receiving
D、received
【正确答案】：A
【题目解析】：句意：谢谢你方3月8日的询盘，我们也确认已收到你方样品。