If \(r = 2^3 \cdot 5^2 \cdot 7\) and \(s = 2^2 \cdot 3^2 \cdot 5,\) which of the following is equal to the greatest

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If \(r = 2^3 \cdot 5^2 \cdot 7\) and \(s = 2^2 \cdot 3^2 \cdot 5,\) which of the following is equal to the greatest common divisor of \(r\) and \(s?\)

A. \(2 \cdot 5\)
B. \(2^2 \cdot 5\)
C. \(2^3 \cdot 5^2\)
D. \(2\cdot3\cdot5\cdot7\)
E. \(2^3 \cdot 3^2 \cdot5^2 \cdot 7\)

[spoiler]OA=B[/spoiler]

Source: GMAT Paper Tests
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