Winnie wrote the following riddle: i am a number between 60 and 100. my ones digit is two less than my tens digit. i am a prime number. what number does winnie's riddle describe?

Find the prime numbers between 60 and 100

Those are: 67,71,73,79,83, 89, 97

Since the number in the ones digit is 2 less than the tens digit, the answer is  97.

the answer is b.)

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