They might go to the movies, or they will rent one at home.

Which sentence corrects the shift in mood?
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A. Go to the movies, or they will rent one at home.
B. They should go to the movies, or they will rent one at home.
C. They might go to the movies, or they could rent one at home.
D. They will go to the movies, or they could rent one at home.

C. They might go to the movies, or they could rent one at home.

The sentence that corrects the shift in mood is:

C. They might go to the movies, or they could rent one at home.