The Special Marriage Act, 1954, which provides for a secular form of marriage, contains comprehensive provisions for divorce.
\[\begin{array}{rl} \bullet & \text{**Section 27** of the Act lists several fault-based grounds for divorce, which include both **Cruelty** and **Desertion** for a period of not less than two years.} \\ \bullet & \text{**Section 28** of the Act provides for divorce by **Mutual Consent**, which is a no-fault ground where both parties agree to dissolve the marriage.} \\ \end{array}\]
Since all the grounds listed in the options—mutual consent, cruelty, and desertion for two years—are valid grounds for divorce under the Special Marriage Act, the correct answer is (D) All of the above.