anaisboddie anaisboddie 05-11-2015 Mathematics contestada Harold made the conjecture that the sum of any two prime numbers is a composite number. Which equation is a counterexample to his conjecture? A. 17 + 2 = 19 B. 11 + 5 = 16 C. 3 + 10 = 13 D. 4 + 1 = 5