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Consider the class LA of all regular languages that contain only words of a length that is a multiple of 4, over the fixed three-letter

Consider the class LA of all regular languages that contain only words of a length that is a multiple of 4, over the fixed three-letter alphabet A={a,b,c}.

(a) Is LA countable?

(b) Is the class MA countable where MA consists of all languages over A that are not in LA?

(c) Is the class LA MA countable?

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