Section 2 of the Dissolution of Muslim Marriages Act, 1939, lists several grounds on which a wife can seek divorce. This question tests the specific time periods for different grounds:
\[\begin{array}{rl} \bullet & \text{Section 2(iv) allows divorce if the husband fails to perform marital obligations for **three years**. So, (A) and (B) are incorrect.} \\ \bullet & \text{Section 2(ii) allows divorce if the husband has neglected or has failed to provide for her maintenance for a period of **two years**. So, (C) is correct and (D) is incorrect.} \\ \end{array}\]