What is the most stable conformation of trans-1-tert-butyl-4-methylcyclohexane?

[ilovephysicssomuch]

The most stable conformation of trans-1-tert-butyl-4-methylcyclohexane is the one in which:
A- the tert-butyl group is axial and the methyl group is equatorial
B- the methyl group is axial and the tert-butyl group is equatorial
C- both groups are axial
D- both groups are equatorial
E- the molecule is in the twist boat conformation

 

[ilovephysicssomuch]

I get D.. can someone confirm me?
Reasoning: in trans-1-tert-butyl-4-methylcyclobutane both the tert-butyl and the c-4 methyl group are equatorial

 

[Bystander]

Yup. Not so hard, is it?