If the average (arithmetic mean) of a, b, and c is p, which of the following is the average of a, b, c, and d?
(A)\(\frac{3p + d}{4}\) (B)\(\frac{3p + d}{3}\) (C)\(\frac{p + d}{4}\) (D)\(\frac{p + d}{2}\) (E)\(\frac{3(p + d)}{4}\)
A