Question

solid form sculptures can be created along the following lines except:
a. convex
b. vertical
c. diagonal
d. horizontal

Explanation:

To determine the answer, we analyze the options. Vertical, diagonal, and horizontal are directional lines along which solid - form sculptures can be created. Convex is a property related to the curvature of a shape (like a convex polygon or a convex surface), not a directional line along which a sculpture is typically created.

Answer:

a. convex