What is the difference between longitudinal cross transverse and horizontal cuts?

Horizontal or transverse or axial cut is if you cutting the object with the horizontal plane. The cut would look like ( -- ). Vertical or longitudinal is cutting in the vertical plane. The cut would look like ( | )
There is also coronal cuts which were a cut with direction from front to back.

The answer is a if u read the definition it makes sense

Yes yes yes very good