How many districts are in Assam?

25
20
35
None of these

The correct answer is B. There are 20 districts in Assam.

Option A is incorrect because there are 20 districts in Assam, not 25.

Option C is incorrect because there are 20 districts in Assam, not 35.

Option D is incorrect because there are 20 districts in Assam, not none of these.