To convert Left Recursion to Right Recursion, we do this:
$A\rightarrow Ax|y$ $\equiv$ $A\rightarrow yA'$ and $A'\rightarrow xA'|e$
Here,
$A→Ac∣Sd∣ϵ$ exhibits Left recursion. Expand it.
$A→Ac∣Aad∣bd| e$
Here: identify x's and y's
$x_1 = c$
$x_2 = ad$
$y_1 = bd$
$y_1 = e$
So, $A\rightarrow bdA'|A'$
$A'\rightarrow cA'|adA'| e$
hence, Option B