Explanation:

- The Baghmara Pitcher Plant Sanctuary is indeed located in Meghalaya.

- Meghalaya is a state in northeastern India, known for its rich biodiversity and unique wildlife.

- The sanctuary is famous for the Nepenthes khasiana, a rare and endangered pitcher plant species.

- Option 1: Assam - This state is also in northeastern India and rich in wildlife but not the location of this sanctuary.

- Option 2: Goa - Located on the western coast of India, known for beaches, not this sanctuary.

- Option 3: Karnataka - A state in the southwestern part of India, known for various other landmarks.

- Option 4: Meghalaya - The correct answer, as this is where the sanctuary is situated.