Explanation:

Let’s break it down, district by district:

- Jaisalmer: This one’s pretty much desert country. It barely has any forest, let alone very dense forest.

- Jodhpur: Similar story—arid, mostly scrub, not known for thick forests.

- Alwar: Actually has some real forest cover thanks to its location in the Aravallis. Sariska Tiger Reserve is here.

- Jaipur: Has a bit more tree cover than pure desert, but still, very dense forest is nothing to write home about.

Here’s the thing: Among these, Jaisalmer has the minimum very dense forest area according to the India State of Forest Report 2019. It’s practically zero.

Correct Answer:

- Option:1, Jaisalmer