Choose the right combined sentence from the following options.

It was not known. What is she doing in Indore.

A. It was not known what she was doing in Indore.

B. It was known she is doing what in Indore.

C. What she was doing in Indore is not known.

D. Not known she was doing what in Indore.

Please do not use chat terms. Example: avoid using "grt" instead of "great".