Answer: condensation polymerization
Explanation: Condensation polymerization is the polymerization in which small units called monomers join together and release small molecules as byproducts to form polymers.
Elimination: A reaction in which small molecules are eliminated.
Substitution: A reaction in which one element is replaced by another.
Addition polymerization is the polymerization in which small units called monomers add together to form polymers.
In the given reaction, two monomers combine and release water as the byproduct forming a large polymer, thus is an example of condensation polymerization.