Q: 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: the amount of time that three people worked on a special project was in the ratio of 2 to 3 to 4 . if the project took 90 hours , how many more hours did the hardest working person work than the person who worked the least ?
Options: a ) 18 hours , b ) 22 hours , c ) 25 hours , d ) 26 hours , e ) 20 hours
A:
e