In this task, you are given an impractical statement. You are also given three reasons (associated with "A", "B", "C") explaining why this statement doesn't make sense. You must choose the most corresponding reason explaining why this statement doesn't make sense.

Ex Input:
Something you might do while driving your car is fly a plane
(A) Cars are driven on the road and planes fly in the air
(B)Cars cannot be flown like planes
(C)You can't fly a plane if you're driving a car

Ex Output:
C


Ex Input:
It's unbelievable that ancient people learnt how to drink water
(A) Water has been existed on earth for millions of years
(B)Drinking water is nothing special for human
(C)There will be no life if there is no water

Ex Output:
B


Ex Input:
students take lessons at night and sleep at day
(A) no student takes lessons at night and sleeps at day
(B)human naturally work at day and sleep at night
(C)staying up is not healthy for young students

Ex Output:

A