The correct answer is C. or 3. Israel returned the territory in the Sinai Peninsula to Egypt.
Two years ago, in 2017, Egypt celebrated the 35th anniversary of the Israeli withdrawal in 1982 from the occupied territories of the Sinai Peninsula, in compliance with the Camp David peace accords, at a time when the area was considered an active jihadist center and source of threats, both for Egypt and for Israel. Egyptian President Abdelfatah al Sisi paid tribute to President Anwar al Sadat, who signed the agreements with Israel in 1979.