After Jane had seen her best friend off at the air port, she came back to work.

A. Coming back to work, Jane had seen her best friend off at the air port.

B. Came back to work, Jane saw her best friend off at the air port.

C. Having seen her best friend off at the air port, Jane came back to work.

D. Seeing her best friend off at the air port, Jane came back to work.