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

Which of the following definitions best describes 'Gr1-low non-classical monocyte'?

A. A patrolling monocyte that is CD14-low and CD16-positive.
B. Gr1-low non-classical monocyte that has low to intermediate expression of the MHC-II complex.
C. A resident monocyte that is Gr-1 low, CD43-positive, and CX3CR1-positive.
D. Gr1-low non-classical monocyte that has high surface expression of a MHC-II complex.

Answer: A resident monocyte that is Gr-1 low, CD43-positive, and CX3CR1-positive.