Respuesta :
The revision that fixes the mistake in parallel structure in the sentence is James won the 200, 400 and he won the 1500 meter event last weekend.
What is a sentence?
A sentence refers to a group of words including main and subordinate clauses.
The revision that fixes the mistake in parallel structure in the sentence is James won the 200, 400 and he won the 1500-meter event last weekend.
Therefore B is the correct option.
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