Rick Has Male Pattern Baldness on the Vertex of His

Rick has male pattern baldness on the vertex of his head and has been using Rogaine for 2 months. He asks how effective minoxidil (Rogaine) is. Minoxidil:

A) Provides a permanent solution to male pattern baldness if used for at least 4 months
B) Will show results after 4 months of twice-a-day use
C) May not work for Rick's type of baldness
D) Works better if he also uses hydrocortisone cream daily on his scalp