Seating Arrangement

Based on the seating arrangement, David is not sitting between Frank and Ehsaan, or Frank and Balbeer, or Frank and Chetan. Therefore, the correct answer is that none of these combinations are sitting next to David.

From the seating arrangement, Frank is seated at the second last position, and David is seated immediately to his right. Therefore, David is to the immediate right of Frank.

Chetan is seated between Ajay and Ehsaan, with Ajay on his left and Ehsaan on his right. Therefore, there are three people to the left of Chetan: Ajay, Balbeer, and David.