"The highest revenue for a journey for, P to D will always be generated by`A C-2\ t i e r`b. `3\
Channel: Doubtnut
Date: 05/04/2020

"The highest revenue
 for a journey for, P to D will always
 be generated by
`A C-2\ t i e r`
b. `3\ t i e r`

c. `A C-3\ t i e r`
d. cannot be determined"