Where is the MPLS label imposed?()
- Aafter the Layer 3 header and before the Layer 2 payload
- Bafter the Layer 3 header and before the Layer 4 payload
- Cafter the Layer 2 header and before the Layer 1 payload
- Dafter the Layer 1 header and before the Layer 2 payload
- Eafter the Layer 2 header and before the Layer 3 payload