The Preferred Conformation of Cis-3-Tert-Butyl-1-Methylcyclohexane Is the One in Which

The preferred conformation of cis-3-tert-butyl-1-methylcyclohexane is the one in which:

A) the t-butyl group is axial and the methyl group is equatorial
B) both groups are axial
C) both groups are equatorial
D) the methyl group is axial and the t-butyl group is equatorial
E) molecule exists in a boat conformation