Make a question in Past Continuous: be/ you/ clean/ your room/ when/ I/ call/ you?

Варианты ответа

1. A.Were you cleaning your room when I called you?верно
2. B.Were you cleaned your room when I called you?
3. C.Are you cleaning your room when I called you?
4. D.Were you cleaning your room when I call you?
5. E.Was you cleaning your room when I called you?