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'.

[Q]: Problem: 11 + 12 + 13 + . . . 51 + 52 = ? 
Options: a ) 1361 , b ) 1362 , c ) 1323 , d ) 1364 , e ) 1365
[A]: c


[Q]: Problem: if a * b * c = ( √ ( a + 2 ) ( b + 3 ) ) / ( c + 1 ) , find the value of 6 * 15 * 2 . 
Options: a ) 8 , b ) 5 , c ) 11 , d ) 3 , e ) 4
[A]: e


[Q]: Problem: a number is greater than 3 but less than 8 . also the number is greater than 6 but less than 10 . what is the number ? 
Options: a ) 5 , b ) 7 , c ) 6 , d ) 8 , e ) 9
[A]:
b