Explanation:

- SC Jamir is a notable Indian politician from Nagaland.

- He has served as the Chief Minister of Nagaland multiple times.

- He was awarded the Padma Bhushan in 2020.

- The Padma Bhushan is an Indian civilian award for distinguished service.

Let's look at the options:

1. Public Affairs: This involves contributions in governance, policy-making, and administration. Given SC Jamir's political career, this is the correct category for his award.

2. Trade and Industry: Focuses on achievements in business and economic sectors. Not relevant to Jamir's contributions.

3. Art: Awards contributions in visual, performing, or literary arts. Doesn't align with Jamir's profile.

4. Literature and Education: Pertains to educational reforms or writing. Not applicable to Jamir's achievements.