Q64 Single choice Mark for later Which statement is true regarding default MPLS label handling? A A router that pops a label from a label stack always pushes a new label on the packet B A router that pops a label from a label stack forwards a frame based on the label that was popped. C A router that pops a label from a label stack forwards a frame based on the underlying destination IP address. D A router that pops a label from a label stack applies class of service based on the IP header to ToS bits. Correct answer