If \( n \) is any natural number, then \( 6^{n}-5^{n} \) always ends with (a) 1 (b) 3 (c) 5

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If \( n \) is any natural number, then \( 6^{n}-5^{n} \) always ends with
(a) 1
(b) 3
(c) 5
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