Task: Question Answering
Input (English): Problem: in an examination , a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer . if he attempts all 60 questions and secures 130 marks , the no of questions he attempts correctly is : 
Options: a ) 33 , b ) 38 , c ) 99 , d ) 27 , e ) 71
Output (English): b