periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.
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
i'm pretty sure it is letter c.) car