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

Which of the following definitions best describes '(R)-(-)-cembrene A'?

A. Conjugate base of bkas#28
B. Compounds of structure R2C=NOH derived from condensation of aldehydes or ketones with hydroxylamine. Oximes from aldehydes may be called aldoximes; those from ketones may be called ketoximes.
C. Conjugate base of bhos#1-CoA
D. Diterpene produced by Amycolatopis arida

Answer: Diterpene produced by Amycolatopis arida