Refer to the exhibit. R1 and R2 cannot establish an EIGRP adjacency. Which action establishes EIGRP adjacency? 

Answer options:

A. Remove the current autonomous system number on one of the routers and change to a different value.
B. Add the passive-interface command to the R1 configuration so that it matches the R2 configuration.
C. Remove the passive-interface command from the R2 configuration so that it matches the R1 configuration.
D. Add the no auto-summary command to the R2 configuration so that it matches the R1 configuration.

C