Anwar al-sadat and menachem begin won the nobel peace prize in 1978 for

easing cold war tensions.

improving relations with china.

signing the salt ii treaty.

signing the camp david

Explanation:

President Jimmy Carter was instrumental in negotiating the Camp David Accords, which directly led to the 1979 Egypt-Israeli Peace Treaty.  Thanks to the persistent efforts of President Carter in working with Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin, those two leaders signed the Camp David Accords in September, 1978.   That led to the 1979 peace treaty between Egypt and Israel that has lasted to the present day.   Israel withdrew from Sinai Peninsula and Egypt recognized Israel as a nation. Sadat and Begin were awarded the Nobel Peace Prize in 1978 for their efforts in reaching the agreement that they made.