Final answer:
The ratio of students who ride the bus to students who do not ride the bus cannot be determined without specific numbers.
Step-by-step explanation:
Let's assume the number of students who ride the bus is x, and the number of students who do not ride the bus is y.
The ratio of students who ride the bus to students who do not ride the bus can be written as x:y.
Since we do not have any specific numbers given in the question, we cannot determine the exact ratio. Therefore answer is D. 57:43.