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

Which of the following definitions best describes '3-methyl-1,2-didehydro-2,3-dihydrobotryococcene'?

A. Members of the class of triterpenoid, mostly isolated as bitter principles of the Simaroubaceae family. They are chemically regarded as degraded triterpenes and can be categorized into groups with C18, C19, C20, C22 and C25 skeletons.
B. Major microspecies at pH 7.3.
C. A triterpenoid obtained by methylation at position 3 of botryococcene with concomitant double bond migration from position 2 to position 1.
D. A triterpenoid obtained by methylation at position 20 of C30-botryococcene with concomitant double bond migration from position 20 to position 21.

Answer: A triterpenoid obtained by methylation at position 3 of botryococcene with concomitant double bond migration from position 2 to position 1.