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:
You can use wifi to locate yourself
(A) Wifi does not have the function of locating
(B)The place you are at may not have wifi signal
(C)Wifi can give you access to the Internet

Ex Output:
A


Ex Input:
You must go to Tianjin if you want to visit the Forbidden City.
(A) The Forbidden City is very spectacular
(B)The Forbidden City is in the center of Beijing.
(C)The Forbidden City was the Imperial Palace in the past.

Ex Output:
B


Ex Input:
The bird flushed the tree.
(A) You can flush a toilet but not a tree.
(B)The tree the tall.
(C)The tree had leaves.

Ex Output:

A