For the Following Chemotherapeutic Agents, Determine the INCORRECT Combination of Agent

For the following chemotherapeutic agents, determine the INCORRECT combination of agent and mechanism of action.
I. Cyclophosphamide, alkylating agent
II. Paclitaxel, anti-mitotic
III. Leuprolide, gonadotropin-releasing hormone (GnRH) analog
IV. Procarbazine, alkylating agent

A) I and II only
B) II and IV only
C) I, III and IV only
D) All are correctly paired.