Another PE Question discount, decrease, increase, required, company

Iginla2010

Assume a company’s ROE is 14% and the required return on equity is 13%. All else remaining equal, if there is a decrease in a firm’s retention rate, a stock’s value as estimated by the constant growth dividend discount model (DDM) will most likely:
A) either increase or decrease.
B) not change.
C) increase.
D) decrease.