Definition: In this task, you need to provide the correct option for a given problem from the provided options.
Input: Problem: a boy multiplied 987 by a certain number and obtained 559981 as his answer . if in the answer both 9 are wrong and the other digits are correct , then the correct answer would be :
Options: a ) 553681 , b ) 555181 , c ) 555681 , d ) 556581 , e ) 556881
Output:
c