Task: Question Answering
Input (English): Problem: a certain basketball team that has played 2 / 3 of its games has a record of 15 wins and 5 losses . what is the greatest number of the remaining games that the team can lose and still win at least 3 / 4 of all of its games ? 
Options: a ) 7 , b ) 6 , c ) 5 , d ) 4 , e ) 2
Output (English): e