Refer to the exhibit.
Compare Design 1 and Design 2 shown in the exhibit. Which description is correct?
A. If a core switch fails, Design 1 features faster failover at Layer 2 than Design 2 does.
B. Design 2 balances traffic more granularly over the redundant links than Design 1 does.
C. Unlike Design 1, Design 2 only uses the ISC between core switches for Layer 2 switched traffic.
D. If a core switch fails, Design 1 features faster failover at Layer 3 than Design 2 does