A theory ------- only when a hypothesis ------- by consistent ...

[ Grammar ]

A theory ——- only when a hypothesis ——- by consistent results from many observations or experiments.

A. may have been developed / was being supported

B. can be developed / has been supported

C. will be developed / was supported

D. has been developed / had been supported

E. had been developed / might have been supported

Select your answer:

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___________ anything interesting this weekend?

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