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

Which of the following definitions best describes 'alpha-cuprenene synthase activity'?

A. Catalysis of the reaction: 2-trans,6-trans-farnesyl diphosphate = (Z,E)-alpha-farnesene + diphosphoric acid.
B. Catalysis of the reaction: 9-alpha-copalyl diphosphate = stemod-13(17)-ene + diphosphate.
C. Catalysis of the reaction: geranyl diphosphate + H2O = (S)-linalool + diphosphate.
D. Catalysis of the reaction: 2-trans,6-trans-farnesyl diphosphate = (-)-alpha-cuprenene + diphosphoric acid.

Answer: Catalysis of the reaction: 2-trans,6-trans-farnesyl diphosphate = (-)-alpha-cuprenene + diphosphoric acid.