Task: Class Definition Understanding (ontology: Sciences/Biology)

Which of the following definitions best describes 'gastrointestinal cancer'?

A. An organ system cancer located in the thoracic cavity that develops in the different types of cells within the lungs, as well as less common cancers of the esophagus, the trachea, or the chest wall.
B. A gastrointestinal system cancer that is located in the intestine.
C. An organ system cancer located in the gastrointestinal tract that is manifested in organs of the gastrointestinal system.
D. An organ system cancer that is manifested in the reproductive organs.

Answer: An organ system cancer located in the gastrointestinal tract that is manifested in organs of the gastrointestinal system.