If a Company Declares a Stock Dividend, What Is the Effect

If a company declares a stock dividend, what is the effect on their retained earnings and earnings per share?

$\begin{array}{ll}&\text { Retained } & \text { Earnings } \\&\text { Earnings } & \text { per Share }\\\hlineA.&\text { Unchanged } & \text { Unchanged } \\B.&\text { Unchanged } & \text { Decreased } \\C.&\text { Decreased } & \text { Unchanged } \\D.&\text { Decreased } & \text { Decreased }\end{array}$

A) Option A
B) Option B
C) Option C
D) Option D