In the borohydride reduction of camphor, borneol is:
a. the major product because endo attack is less favorable
b. the minor product because an axial hydroxy is less stable
c. the minor product because exo attack is less favorable
d. the major product because endo attack is more favorable
e. the major product because an equatorial hydroxyl is unstable
Answer: c. the minor product because exo attack is less favorable