Let S be the set of all finite sequences of letters a, b, c. For example, the following are elements of S: abaaccbcbcaaa, ababc, cccaa. Is S countable? Justify your answer.

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Q: Find n(A) for the set. A= {5, 5, 6, 6, 9, 9} O A. n(A) = 10 O B. n(A) = 3 O C. n(A)= 6 O D. n(A) = 5

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