Bombykol Is a Pheromone Secreted by the Female Silkworm Moth

Bombykol is a pheromone secreted by the female silkworm moth to attract males.This compound contains two alkene double bonds.Which of the following correctly describes the geometry around each?

A) The double bond at C10 is cis and the double bond at C12 is trans.
B) The double bonds at C10 and C12 are both cis.
C) The double bonds at C10 and C12 are both trans.
D) The double bond at C10 is trans and the double bond at C12 is cis.
E) It is impossible to tell from the line formula alone.