In this task, you need to provide the correct option for a given problem from the provided options.
Q: Problem: in a bag , there are 2400 ball , and their colors are red , green blue . . the ratio of the balls are 15 : 13 : 17 . then how many red color balls are available in the bag ?
Options: a ) 900 , b ) 1600 , c ) 750 , d ) 890 , e ) 1010
A:
a