Explanation

The question asks for the 'current' IG, but Sultan Ahmad Choudhry is not the current incumbent as of late 2023/2024, making option B incorrect. Ghulam Nabi and Ishaq Jadoon are also not the current IGs, so options A and C are incorrect. Since none of the named individuals are the current IG, 'None of these' is the logically correct choice for a factual question about the present holder of the office.