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Which sentence uses the future perfect in a way that is both semantically appropriate a...

Which sentence uses the future perfect in a way that is both semantically appropriate and syntactically precise, CORRECTLY expressing an action that will be completed before a specified future point?


A

By the time the committee meets next Friday, the researchers are finalizing the revised protocol.


B

By the time the committee meets next Friday, the researchers will be finalizing the revised protocol.


C

By the time the committee meets next Friday, the researchers will have finalized the revised protocol.


D

By the time the committee meets next Friday, the researchers will finalize the revised protocol.


E

By the time the committee meets next Friday, the researchers will have been finalizing the revised protocol.