however, jon made a mistake. what mistake did jon make? choose 1 answer: a 51 is prime, not composite. b 61…

Brief Explanations:

A prime number has only two distinct positive divisors: 1 and itself. A composite number has more than two positive divisors. 51 = 3×17, so it is composite. 61 is prime as its only positive - divisors are 1 and 61. 84=2×42 = 3×28 = 4×21 = 6×14 = 7×12, so it is composite. The error is misclassifying 84 as prime.

Answer:

C. 84 is prime, not composite.