\(P^*\) is defined as the number of positive even integers less than \(P,\) if \(P\) is odd. If \(P\) is even, \(P^*\)

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\(P^*\) is defined as the number of positive even integers less than \(P,\) if \(P\) is odd. If \(P\) is even, \(P^*\) is defined as the number of prime integers less than \(P.\) What is \((5^* + 10^*)^*?\)

(A) \(3^*\)

(B) \(4^*\)

(C) \(7^*\)

(D) \(10^*\)

(E) \(11^*\)

Answer: C

Source: Magoosh