Which of the following is not true of sculpture in the round?
a.
there are three main techniques of sculpture in the round which include, casting, carving, and assemblage.
b.
it is a three dimensional form of art that is meant to be seen from all sides.
c.
sculptures in the round are usually posed in order to create an interesting composition from all viewing angles.
d.
when observing a sculpture in the round, the division of positive and negative space is depending on the angle it is viewed from.

   A. There are three main techniques of sculpture in the round which include, casting, carving, and assemblage

Explanation:  When it comes to sculpture in the round, it can be produced by casting, carving, and welding, not assemblage. The purpose of such a sculpture is to be visible in three dimensions, therefore the sculpture is made in three-dimensional form. These can be statues as well as busts (portrait busts), etc. They can be made by pouring some material into a mold, so the casting can be perform in the form of modelling. It can also be made from pieces of material, by carving as well as by welding components intended for sculpture. Given that these sculptures are depicted i.e made in three dimensions, so that they are actually free-standing.

the answer is b. i'm positive it's that answer.