When did the British return Hong kong to china?

A. 2000
B. 1997
C. 1999
D. 1980

At midnight on June 30/July 1, 1997, the crown colony of Hong Kong (See Map ) officially reverted to Chinese sovereignty, ending 156 years of British rule. After a formal handover ceremony on July 1, the colony became the Hong Kong special administrative region (HKSAR) of the People’s Republic of China.