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

Which of the following definitions best describes 'henicosan-4-ol'?

A. A secondary fatty alcohol that is henicosane substituted by a hydroxy group at position 8.
B. A secondary fatty alcohol that is pentadecane substituted by a hydroxy group at position 3.
C. A secondary fatty alcohol that is pentacosane substituted by a hydroxy group at position 12.
D. A secondary fatty alcohol that is henicosane substituted by a hydroxy group at position 4.

Answer: A secondary fatty alcohol that is henicosane substituted by a hydroxy group at position 4.