Refer to the exhibit.
R4 is experiencing packet drop when trying to reach 172.16.2.7 behind R2. Which action resolves the issue?
A. Insert a /16 floating static route on R2 toward R3 with metric 254
B. Insert a /24 floating static route on R2 toward R3 with metric 254
C. Enable auto summarization on all three routers R1, R2, and R3
D. Disable auto summarization on R2
