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

Which of the following definitions best describes 'muscle layer of jejunum'?

A. A muscular coat that is part of a jejunum.
B. A muscular coat that is part of a ileum.
C. A muscular coat that is part of a duodenum.
D. A bipolar neuron found in the retina that is synapsed by rod photoreceptor cells but not by cone photoreceptor cells. These neurons depolarize in response to light.

Answer: A muscular coat that is part of a jejunum.