Why does a coin at the bottom of a bowl appear to rise when water is poured into it?

Question

Why does a coin at the bottom of a bowl appear to rise when water is poured into it? — Exam MCQ

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B. Due to refraction of light — Light from the coin bends away from the normal on entering air from water, making the apparent depth smaller.

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A. Because water reflects more light

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C. Because the coin is magnified by the water

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D. Because the coin floats when water is poured in