Explanation:

- Option 1 - Hassan: This district is known for its rich history and temples like Belur and Halebidu. However, it does not house the Brahmagiri Wildlife Sanctuary.

- Option 2 - Mandya: Famous for its sugarcane production and close proximity to Mysore, Mandya does not contain this sanctuary either.

- Option 3 - Udupi: While famous for beaches and the Krishna Temple, Udupi is also not the location of the Brahmagiri Wildlife Sanctuary.

- Option 4 - Kodagu: ?? Correct Answer. Known for its beautiful landscapes and coffee plantations, Kodagu is indeed the location of the Brahmagiri Wildlife Sanctuary.