In a collection of red, blue, and green marbles, there are 25 \% more red marbles than blue marbles, and there are 60 \% more green marbles than red marbles. Suppose that there are r red marbles. What is the total number of marbles in the collection?
Answer Choices
A. 2.85 r
B. 3 r
C. 3.4 r
D. 3.85 r
E. 4.25 r