What Is the Main Difference Between Condensation Polymers and Addition

What is the main difference between condensation polymers and addition polymers?

A) The condensation polymer has less atoms in it than the sum of the starting monomers because a small molecule is lost during condensation.
B) The number of atoms incorporated into the addition polymer increases compared to the starting monomers.
C) The number of atoms incorporated into the condensation polymer increases compared to the starting monomers.
D) Condensation polymers all lose water molecules when they form.
E) All of the above are true.