Zia ul Haq became President of Pakistan in

Zia ul Haq became President of Pakistan in
A: 1977
B: 1978
C: 1981
D: 1985

After the July 1977 coup he first served as Chief Martial Law Administrator. The presidency shifted to him the following year. He formally assumed the office in 1978. His military rule then continued through the late 1980s.