TASK DEFINITION: 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.
PROBLEM: You can sing in a library
(A) Singing is usually prohibited in a library
(B)A bad singer is not welcome in a library
(C)A bad song in a library distracts readers

SOLUTION: A

PROBLEM: after the dinner, I would like to eat desert
(A) eating dinner in the desert is not a good choice
(B)the people who explore the desert may not have so many chances to enjoy their dinner
(C)desert is so big and made of sand, nobody can eat it

SOLUTION: C

PROBLEM: The coin was made of cheese
(A) Cheese is better to eat than silver
(B)Cheese is cheaper than silver
(C)Cheese is a food and silver is metal

SOLUTION:
C