Step 1: Definition of Abhidharma.
Abhidharma is the branch of Buddhist philosophy that comprehensively explains metaphysics and psychology. It presents a systematic classification of phenomena.
Step 2: The Four Categories of Abhidharma.
- (A) Rūpa = Physical form or matter.
- (B) Citta = Consciousness.
- (C) Caitasika = Mental factors associated with consciousness.
- (D) Nirbāṇa = Liberation, the ultimate objective.
Step 3: Correct Sequence.
In this order, Abhidharma discusses four elements:
First, rūpa (physical substance), then citta (volitional consciousness), along with caitasika (mental attributes), and finally, nirvāṇa.
Step 4: Analysis of Options.
- (1) (A), (B), (C), (D): Absolutely correct.
- (2) (B), (C), (D), (A): Incorrect order.
- (3) (C), (D), (A), (B): Incorrect.
- (4) (D), (A), (B), (C): Incorrect.
Step 5: Conclusion.
The correct sequence is Rūpa → Citta → Caitasika → Nirvāṇa.