Answer:
A.) addition
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.
