[ Grammar ]
Unless he is already full, he will be able to eat a whole cake in 5 minutes.
A. He will not be able to eat a whole cake because he is already full.
B. Though he is already full, he’ll be able to eat a whole cake in 5 minutes.
C. He will be able to eat a whole cake in 5 minutes if he is not already full.
D. Even if he is already full, he will be able to eat a whole cake in 5 minutes.

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