First you must find the cummulative price
do this by adding up the total cost.
(27 x 1.25) + (5 x 1.99) + 1.50 = 45,2 dollars total
now divide this amongst the students.
45.2/26 = 1.74 dollars each
This isnt an answer choich so I would say c is the closest
Hopefully there is a hidden option E. 1.75 or something.