If the human pancreas is not functional name the disease the human is likely to suffer from​

Diabetes. If your pancreatic beta cells do not produce enough insulin or your body can't use the insulin your pancreas produces, you can develop diabetes. Diabetes can cause gastroparesis, a reduction in the motor function of the digestive system. Diabetes also affects what happens after digestion.

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.

c should be the answer