Question

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 accords.

Explanation:

Anwar al-Sadat (Egyptian president) and Menachem Begin (Israeli prime minister) signed the Camp David Accords in 1978, a landmark peace agreement between Egypt and Israel, which earned them the 1978 Nobel Peace Prize. The other options are incorrect: the Salt II Treaty involved the U.S. and USSR, easing Cold War tensions was not their specific achievement, and their work was unrelated to Sino-relations.

Answer:

signing the Camp David Accords.