George is the calmest gorilla in the zoo. He weighs 9 pounds more than three times the weight of the shortest adult gorilla. The equation for George’s weight is 3c + 9 = 417, where c is the weight of the shortest gorilla. Plug the weight of each gorilla into the equation to check which value makes the equation true. Based on your answer, what is the name of the shortest adult gorilla in the zoo?