Could a museum be a person?

[Linh Bui Hoang]

I did a test in which there was a question like this:

That’s the museum _________

A. about which I’ve heard many good reports
B. which I’ve heard many good reports about
C. that I’ve hear many good reports about
D. about whom I’ve heard many good reports

I chose A though I think that A and B are both correct, even the same. But surprisingly, it turned out to be D when I checked the keys.
Please tell me what is correct.
Thank you very much in advance.

[Mister Micawber]

.
The key is wrong. C is the expected answer if you have mistyped it and it really reads 'heard'. Arguments could be made for A and B, too.
.
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Native English teacher at Mister Micawber's