My answer was accepted (ये लोग तुम्हें सुन रहे हैं ) but I assume the suggest answer is more natural?
Not to get too silly, but are they listening to the sound of your stomach growling and your farts? :) Or are they paying attention to the verbal message (bāt) that you are vocalizing?
Maybe he is singing, and not talking.
However, the sentence by Sam, can also have a subtle meaning of unintended audience.
Your answer is not incorrect. It is just less common. And it is natural too.
One of the three answers is ये लोग आपकी बात सुन रही हैं. Isn't is correct if the group of people we are talking about are all women?