Three stacks containing equal numbers of chips are to be made from 9 red chips, 7 blue chips，and 5 green chips．If all of these chips are used and each stack contains at least 1 chip of each color, what is the maximum number of red chips in any one stack ？（）

A．7

B．6

C．5

D．4

E．3

《房地产管理法》规定，国家实行房地产价格申报制度和房地产价格( )制度。

A．监理

B．资格认证

C．评估

D．发证