To arrange the items in the correct sequence, we need to understand the chronological order of when these Acts were enacted in relation to each other:
- MRTP Act: The Monopolies and Restrictive Trade Practices Act (MRTP) was enacted in 1969 to prevent monopolistic and restrictive trade practices in India.
- FERA: The Foreign Exchange Regulation Act (FERA) was enacted in 1973 to regulate foreign exchange and was replaced by FEMA in 1999.
- FEMA: The Foreign Exchange Management Act (FEMA) was enacted in 1999 to facilitate external trade and payments and to promote the orderly development of the foreign exchange market in India.
- Competition Act: The Competition Act was enacted in 2002 to establish a commission to prevent practices having adverse effect on competition.
Therefore, the correct chronological sequence of these Acts is: MRTP (D), FERA (C), FEMA (B), Competition Act (A).
Accordingly, the correct answer is: (D), (C), (B), (A).