An engineer implemented LDP protocol on the ISP network. The engineer must ensure that there are no packet loss issues when IGP and LDP protocols are not synchronized. Which configuration must the engineer implement so that the IGP routing protocol will wait until LDP convergence is completed?

A. Disable MPLS LDP IGP synchronization on the network. B. Configure LDP sessions protection on the network. C. Disable IP CEF on routers running LDP and enable LDP protocol. D. Configure MPLS LDP IGP synchronization on the network.