Which of the following statements about the constant growth dividend discount model (DDM) in its application to investment analysis is FALSE The model:（）

A. is best applied to young, rapidly growing firms.

B. can't be applied when g > K.

C. can't handle firms with variable dividend growth.

依据群体的正规化程度及其成员间的互动方式，可将社会群体划分为（）

A.初级群体和次级群体

B.正式群体和非正式群体

C.内群体和外群体

D.成员群体和参照群体