In this task, you need to provide the correct option for a given problem from the provided options.

[Q]: Problem: in a group of 650 readers who read science fiction or literacy works or both , 250 read science fiction and 550 read literacy works . how many read both science fiction and literacy works ? 
Options: a ) 650 , b ) 250 , c ) 150 , d ) 100 , e ) 400
[A]: c


[Q]: Problem: a marketing survey of anytown found that the ratio of trucks to sedans to motorcycles was 3 : 7 : 2 , respectively . given that there are 11,900 sedans in anytown , how many motorcycles are there ? 
Options: a ) 1260 , b ) 2100 , c ) 3400 , d ) 4200 , e ) 5200
[A]: c


[Q]: Problem: if log 2 = 0.30103 , the number of digits in 2128 is . 
Options: a ) 38 , b ) 39 , c ) 40 , d ) 41 , e ) 56
[A]:
b