Complete the dialogue by picking the correct option.
Mrinal asked his brother Mridul if he could watch the vessel of milk kept on the stove since he had to run some emergency errands. Mridul excused himself by saying he had to go to class.
Mrinal: Could you watch the vessel of milk kept on the stove? I have to run some emergency errands.
Mridul: a)__________________________________
I am sorry Mrinal, but I have to go to class.
Mrinal: Could you watch the vessel of milk kept on the stove? I have to run some emergency errands.
Mridul: I am sorry Mrinal, but I have to go to class.