Fen Company paid a $$300$ cash dividend. Which of the following shows how this event will affect the company's accounting equation? The letters $"$NA$"$ indicate that the component of the equation is not affected.

$\backslash$table$[[,$Assets,$=,$Liabilities,$+,$Common Stock,$+,$Retained Earnings$],[$A$.,($$$30),=,$NA$,+,$NA$,+,($$$30)$