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

Which of the following definitions best describes 'biology journal'?

A. A pyrazolo[4,3-d]pyrimidin-7-one having a methyl substituent at the 1-position, a propyl substituent at the 3-position and a 2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl group at the 5-position.
B. Medical journals which cover urological topics.
C. Sex chromosomes as they occur in humans.
D. Scientific journals which cover biological topics.

Answer: Scientific journals which cover biological topics.