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