Explanation:

- Correct Answer: Option 3: Sri Lankan

- Gotabaya Rajapaksa is a Sri Lankan politician. He served as the President of Sri Lanka from 2019 to 2022.

- His role in Sri Lankan politics, especially his involvement in post-civil war rebuilding efforts and his tenure in government, is significant for his national identity.

- Option 1: Burmese

- Refers to individuals from Myanmar (formerly known as Burma).

- There is no connection between Gotabaya Rajapaksa and Burma/Myanmar in terms of nationality or political involvement.

- Option 2: Bangladeshi

- Refers to individuals from Bangladesh.

- Bangladesh has a distinct political history and identity; there is no indication that Gotabaya Rajapaksa has ties to this nation.

- Option 4: Indonesian

- Refers to individuals from Indonesia.

- Indonesia, being part of Southeast Asia, has a separate cultural and political sphere from Sri Lanka. Rajapaksa's history is not linked with this nation.