Correct option is C
The correct chronological order of the committees with regards to corruption and administrative reforms in India is:
1. Gorwala Committee: Established in 1951 to examine the public system's efficiency and to suggest measures for its improvement.
2. Santhanam Committee: Formed in 1962, it was the first major attempt to study corruption in the Indian administrative system and suggested comprehensive measures for its prevention.
3. First Administrative Reforms Commission: Constituted in 1966, aimed at reviewing the public administration system of India and suggesting reforms.
4. Vohra Committee: Set up in 1993, it examined the issue of criminalization of politics and the nexus among criminals, politicians, and bureaucrats in India.
Therefore, the correct option is (c) A, D, B, C, which reflects the chronological order in which these committees were established, starting from the Gorwala Committee to the Vohra Committee.