Though the Democratic Republic of Vietnam was formed in 1945, the French regained control. Who helped them ? 

C) to flow all throughput the year

(D) Napoleon

Correct option is D) USSR

C) Dien Bien Phu

B) Only (i) and (ii)

D) To develop extensive trade opportunities.

B) Ho Chi Mirth City

Correct option is C) Colons

Correct option is C) 1885

D) The south part was handed over to Ngo Dinh Diem