Click the exhibit button. Assuming point-to-point links, which of the following statements is true?
Routers R1 and R2 are L2 routers. Routers R3 and R4 are L1/L2 routers
Routers R1, R2, and R4 are L1/L2 routers. Router R3 is an L1 router,
Routers R1, R2, and R3 are L2 routers. Router R4 is an L1 router,
Routers R1 and R2 are L1/L2 routers. Routers R3 and R4 are L1 routers
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