In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

[EX Q]: Problem: from a total of 5 boys and 6 girls , how many 4 - person committees can be selected if the committee must have exactly 2 boys and 2 girls ? 
Options: a ) 16 , b ) 24 , c ) 60 , d ) 120 , e ) 150
[EX A]: e

[EX Q]: Problem: whats the reminder when 879,548 , 521,456 , 258,759 , 653,258 , 778,455 , 658,985 is divided by 4 
Options: a ) 1 , b ) 7 . , c ) 2 . , d ) 3 , e ) 9
[EX A]: a

[EX Q]: Problem: what is the smallest no . which must be added to 27452 so as to obtain a sum which is divisible by 9 ? 
Options: a ) 7 , b ) 2 , c ) 9 , d ) 4 , e ) 6
[EX A]:
a