For the cyclohexanes substituted in the positions indicated, identify the substituents as either axial or equatorial in chair conformers. For example, a 1,2-cis relationship means that one substituent must be axial and one equatorial.

a) 1,5-cis-disubstituted
b) 1,6-trans-disubstituted
c) 1,4-trans-disubstituted

answer options:

-both axial only

-both equatorial only

-both axial or both equatorial

-one axial-one equaltorial