Following is a structural formula and a ball-and-stick model of cholestanol, a close rel...

Following is a structural formula and a ball-and-stick model of cholestanol, a close relative of cholesterol.

(a) Describe the conformation of each six-membered ring and the one five-membered ring.

(b) Is the -OH group on ring A in an axial or equatorial position?

(c) Is the -CH3 group between rings A and B in an axial or an equatorial position?