Which term describes this reaction? addition condensation elimination substitution

Explanation:

Addition reaction is when two molecules combine to give one molecule

Condensation reaction is one which involves addition which is immediately followed by elimination of small molecules such as water and ammonia.

Elimination is the reverse of addition. It involves the removal of two atoms or groups of atoms from the same carbon atom or from different carbon atoms in a molecule.

Subsitution is the replacement of a particular group from a molecule.