What is one difference between a mixture and a compound?
o a compound can only be separated into its components by chemical means.
o a compound consists of more than one phase.
a mixture must be uniform in composition.
o amixture can only be separated into its components by chemical means.

Explanation:

A compound consists of more than one phase.

A mixture must be uniform in composition

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

c) should be the answer.