招标委员会的成虽中，技术、经济等方面的专家不得少于()。

A．3人

B．5人

C．成员总数的2／3

D．成员总数的1／2

—Would you like to tell your problems to your mother or to your father?

— ______. I usually keep it deep in my heart. [ ]

A. Both

B. Either

C. None

D. Neither