Select the option that expresses the given sentence in indirect speech.
The teacher was happy to meet her and asked, “When did you complete all these?”

A

The teacher was happy to meet her and asked when she had completed all those.

B

The teacher was happy to meet her and asked when she had been completing all those.

C

The teacher was happy to meet her and asked when did she complete all those.

D

The teacher was happy to meet her and asked when had she completed all those.