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Question:

Which of the following demonstrates correct punctuation?

A We will be studying three sources of electrical power: solar, wind, and tidal energy.
Explaination

We will be studying three sources of electrical power: solar, wind, and tidal energy is correct. When adding a list that gives the details of a claim in the sentence, use a colon. The colon must follow an independent clause. In other words, the part in front of the colon should be able to stand on its own as a sentence. “Will study/will be studying” are both grammatically correct and do not affect the solution.