What Was the Most Probable Reason for Anwar Al-Sadat's Initiative

What was the most probable reason for Anwar al-Sadat's initiative to make peace with Israel?

A) He was driven by a lifelong, idealist yearning for peace.
B) It was the best chance for Egypt to recover the Sinai.
C) He was following the precedent set by Gamal Abdel Nasser.
D) It was Egypt's best chance to solve its economic problems.
E) He had reliable intelligence that Egypt was about to be attacked by Israel.