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

Which of the following definitions best describes 'manual digit mesenchyme'?

A. An intromittent organ in certain biologically male organisms. In placental mammals, this also serves as the organ of urination.
B. The the concept originates at the uterine horns, in the parametrium. It leaves the pelvis via the deep inguinal ring, passes through the inguinal canal and continues on to the labia majora where its fibers spread and mix with the tissue of the mons pubis[WP]. A fibromuscular band that attaches to the uterus and then passes along the broad ligament, out through the inguinal ring, and into the labium majus[MESH].
C. A bone spine that is part of a ilium.
D. Mesenchyme that is part of a developing finger [Automatically generated definition].

Answer: Mesenchyme that is part of a developing finger [Automatically generated definition].