In this task, you need to provide the correct option for a given problem on probability from the provided options.
Q: Problem: there are 7 pairs of socks and 2 socks are worn from that such that the pair of socks worn are not of the same pair . what is the number of pair that can be formed . 
Options: a ) 40 , b ) 49 , c ) 41 , d ) 56 , e ) 42
A: 
e