Explanation:

- First, understand the seating arrangement based on the clues provided. The seating is circular and everyone is facing the center.

- "Three persons sit between Nb and Tr." So, if we place Nb, count three, and then place Tr.

- "Qv is an immediate neighbour of Sp and Pv." So, Qv sits between Sp and Pv.

- "Three persons sit between Ie and Pv." Place Ie, count three people, and place Pv.

- "Rd is sitting to the immediate right of Vq." Place Vq, and to the immediate right of it (going clockwise), place Rd.

- "Two persons sit between Ie and Nb." Place Ie, count two, and place Nb.

- "Ie sits second to the left of Vq." Place Ie, count two to its left (anticlockwise), and place Vq.

- "Only one person sits between Rd and Sp." Identify a spot for only one person between Rd and Sp after placing them.

- "Tr is not an immediate neighbour of Vq." Ensure Tr is not directly next to Vq.

Now, counting the number of persons between Ie and Sp in the anticlockwise direction from Ie leads to four persons in between them.

Correct Answer: Option:2, Four