In a certain MPLS network, the LSP information of R1 and R2 is shown in the figure. At this time, the administrator enters the command ping 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?

In a certain MPLS network, the LSP information of R1 and R2 is shown in the figure. At this time, the administrator enters the command ping 3.3.3.3 on R1. Which of the following descriptions of this scenario is correct?

A . The Ping message sent by R1 will carry label 1025. After receiving it, R2 will perform label exchange and forward it based on MPLS.
B . The Ping message sent by R1 does not carry any label, but R2 will add a label after receiving it and forward it based on MPLS
C . The Ping message sent by R1 will carry label 1025. After receiving it, R2 will remove the label and forward it based on IP.
D . The Ping message sent by R1 does not carry any label. After receiving it, R2 will forward it based on IP.

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Answer: C