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Round the answer to the following problem to the correct number of significant figures.

(14.0186 ? 0.00458) + (15.0032 ? 0.99542) = 14.99869

a. 15.0 b. 15.00 c. 14.999 d. 14.9987

My answers is A. however, it shows as incorrect and correct answer is C. Can you please explain.

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