What is a condition characterized by frequent liquid stools known as?

Diarrhea is a condition which is characterized by frequent liquid stools. This sets it apart from the other options in which constipation involves infrequent or difficulty passing stools, dyspepsia relates to discomfort or pain in the upper abdominal area, and colitis refers to inflammation of the colon. Therefore, only diarrhea accurately describes the symptom of frequent liquid stools.