What is the function of an LSR?

A.
Label Switching Routers make decisions based on ATM header information.
B.
Label Switching Routers make forwarding decisions based on the MPLS label.
C.
Label Switching Routers make switching decisions based on the original MAC Header.
D.
Label Switching Routers make routing decisions based on the original IP Header.
I have the same idea. B
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I have the same idea. B
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