Tasa is playing a game with 2 different types of fair geometric objects. One object has 8 faces numbered 1 to 8. The other object has 6 faces labeled M, N, O, P, Q, and R. What is the probability of rolling a number greater than 3 and the letter R on the first roll of both objects?
A. 1/14
B. 5/48
C. 1/4
D. 43/48