Step 1: Understanding antaḥkaraṇa.
In the Sāṅkhya system, antaḥkaraṇa refers to the internal psychological apparatus responsible for cognition and self-awareness. Step 2: Components of antaḥkaraṇa. Buddhi (intellect) and Ahaṃkāra (ego) are integral parts of the internal organ. Step 3: Distinction from sense and motor organs. Jñānendriyas and Karmendriyas are external organs and do not belong to the antaḥkaraṇa. Step 4: Conclusion.
Hence, options (A) and (B) are correct.