Refer to the exhibit. Traffic in this network that is destined for 10.1.3.1 arrives at R1. Which path will the traffic take from here and why? 

Answer options:

A. through R3, because it is the lowest cost path
B. through R2, because it is an intra-area path
C. through R2, because R3 is in a different autonomous system
D. through R3, because R1 will only have a summary (type 3) LSA from R2

B