Detailed Instructions: In this task, you need to provide the correct option for a given problem from the provided options.
Problem:Problem: a bag contains 4 red , 4 blue and 2 green balls . if 2 ballsare picked at random , what is the probability that both are red ? 
Options: a ) 2 / 15 , b ) 2 / 21 , c ) 5 / 26 , d ) 3 / 29 , e ) 4 / 27
Solution:
a