What is the probability that an integer between 0 and 9,999 has exactly one 8 and one 9?
(a) 4 * 3 / (10⁴)
(b) 4 * 3 * 8 * 7 / (10⁴)
(c) 2 * 4 * 3 * 8² / (10⁴)



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