In this task, you need to answer the given multiple-choice question on the physics. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Problem: convert 0.32 in to a vulgar fraction ? 
Options: a ) 8 / 25 , b ) 16 / 50 , c ) 17 / 50 , d ) 19 / 50 , e ) none
a