根据我国《海商法》的规定，接受承运人委托，从事货物运输或部分运输的人，包括接受转委托从事此项运输的其他人，称为（）。

A.实际承运人

B.托运人

C.承运人

D.实际收货人

Which of the following is true

A．Male insects are always smaller than females.

B．In a given species nature provides differences between sexes to secure successful production.

C．Size and strength protect females from other females.

D．Longevity is characteristic of the Dynastes and Megasoma.