Correct Option: C

The Mule is a cross between a donkey stallion (called a jack) and a horse mare. Mules ears are usually somewhat smaller than a donkeys, longer but the same shape as the horse parents. The mule’s conformation will be a combination of traits from both parents. The head, hip and legs usually take after the jack. Mules do not have pronounced arches to the neck, even from breeds such as Arabians or Warm bloods. A slight arch or straight neck is preferable to a ewe, or upward curved neck.