What Best Describes the Soviet Union Under Leonid Brezhnev

What best describes the Soviet Union under Leonid Brezhnev?

A) It was completely shut off from Western influences.
B) It stressed worker incentives and increased efficiency in industrial production.
C) It saw heavy industry decline with improvement in agriculture.
D) It threatened to go to war against the People's Republic of China.
E) It had reached parity with the U.S. in nuclear arms, and it allowed some access to Western music and art.