Explanation:

- Option 1: Prakash Javadekar

- Prakash Javadekar was the Union Minister for Information and Broadcasting as of January 2021. He had taken over the portfolio in May 2019 during the second term of the Narendra Modi government.

- Javadekar has held various portfolios, including Environment, Forest and Climate Change, and HRD, throughout his political career.

- Option 2: Ravi Shankar Prasad

- Ravi Shankar Prasad was serving as the Union Minister for Law and Justice, and Electronics and Information Technology in January 2021. He was not the Minister for Information and Broadcasting at that time.

- Option 3: Smriti Irani

- Smriti Irani has served as the Union Minister for Women and Child Development and Minister for Textiles but was not associated with the Information and Broadcasting ministry in January 2021.

- Option 4: Babul Supriyo

- Babul Supriyo served in various capacities, including as Minister of State for Environment, Forest and Climate Change, but did not hold the Information and Broadcasting portfolio in January 2021.

- Correct Answer: Option 1: Prakash Javadekar