The answer is the first option or "colic." Colic is a disease that causes sadness or depression from abdominal pain. Colic mainly effects young infants but it can also attack horses. When this happens it's mainly caused by problems with the horses digestive system. It's not the second option because scurvy is a disease caused by a lack of vitamin C and the symptoms are weakness, along with sore limbs. It's also not the third option because cleft lip is a split in a persons upper lip.
