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: ronald and elan are working on an assignment . ronald takes 6 hours to type 32 pages on a computer , while elan takes 5 hours to type 40 pages . how much time will they take , working together on two different computers to type an assignment of 110 pages ?
Options: a ) 3 hours , b ) 6 hours , c ) 4 hours , d ) 8 hours , e ) 10 hours
d