To answer this question, you need to have knowledge about the Sambalpuri language and its region of origin.
Option A) North Manipur - This option is incorrect because Sambalpuri language is not spoken by people of North Manipur. Sambalpuri language is primarily spoken in the state of Odisha in India.
Option B) Western Orissa - This option is correct because Sambalpuri language is predominantly spoken in the western region of the state of Odisha, which is also known as Western Orissa.
Option C) East Assam - This option is incorrect because Sambalpuri language is not spoken by people of East Assam. It is geographically localized to the western part of Odisha.
Option D) South Gujarat - This option is incorrect because Sambalpuri language is not spoken by people of South Gujarat. It is primarily spoken in the western region of Odisha.
The correct answer is option B) Western Orissa. This option is correct because Sambalpuri language is spoken by people in the western region of the state of Odisha, which is also known as Western Orissa.