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Which revision fixes the mistake in parallel structure in the sentence?
James won the 200-meter event, 400, and he won the 1500-meter event last weekend.
a.James won the 200-meter event, 400, as well as the 1500-meter event last weekend.
b.James won the 200, 400, and he won the 1500-meter event last weekend.
c.James won the 200-meter event, the 400-meter event, and the 1500-meter event last weekend.
d.James won the 200-meter event, won the 400, and the 1500-meter event last weekend