The music director of a film wants to select four persons to work on "different aspects of the composition of a piece of music. Seven persons are available for this work; they are Rohit, Tanya, Shobha, Kaushal, Kunal, Mukesh and J aswant. Rohit and Tanya will not work together. Kunal and Shobha will not work together. Mukesh and Kunal want to work together. Which of the following is the most acceptable group of people that can be selected by the music director?

The problem requires selecting four people based on specific conditions. Let's analyze each condition and then evaluate the options.

Conditions:

1. Rohit and Tanya will not work together. (R and T cannot be in the same group)
2. Kunal and Shobha will not work together. (K and S cannot be in the same group)
3. Mukesh and Kunal want to work together. (If M is selected, K must be selected, and vice versa. They are a pair.)

Let's check each option:

A) Rohit, Shobha, Kunal and Kaushal

• This group includes Kunal and Shobha. This violates condition 2 (Kunal and Shobha will not work together). So, A is incorrect.

B) Tanya, Kaushal, Shobha and Rohit

• This group includes Tanya and Rohit. This violates condition 1 (Rohit and Tanya will not work together). So, B is incorrect.

C) Tanya, Mukesh, Kunal and Jaswant

• Tanya is present, Rohit is not. (Condition 1 satisfied)
• Kunal is present, Shobha is not. (Condition 2 satisfied)
• Mukesh and Kunal are both present. (Condition 3 satisfied)
• All conditions are met. So, C is correct.

D) Shobha, Tanya, Rohit and Mukesh

• This group includes Tanya and Rohit. This violates condition 1 (Rohit and Tanya will not work together). So, D is incorrect.

Therefore, the most acceptable group is Tanya, Mukesh, Kunal and Jaswant.