—         that he picked up French?

—It was in 1949          he traveled in France. 

A. Was it when; that                   B. When was it; that    

C. Was it when; when                  D. When was it; when

—         that he picked up French?

—It was in 1949          he traveled in France. 

A. Was it when; that                   B. When was it; that    

C. Was it when; when                  D. When was it; when

—        that he picked up French?
—It was in 1949          he traveled in France.