Refer to the exhibit. The external subnet and internal EPG1 must communicate with each other, and the L3Out traffic must leak into the VRF named "VF1". Which configuration set accomplishes these goals

'Export Route Control Subnet' is a specific setting often used for inter-VRF route leaking or advertising routes out from ACI, not the primary mechanism to define external subnets for basic L3Out communication within a VRF.

Configuring 'External Subnets for External EPG' is the specific action within an L3Out policy to define the IP prefixes of the external network. These subnets are then associated with a contract to allow communication with internal EPGs like EPG1, and are made available within the VRF (VF1) that the L3Out is associated with, fulfilling both communication and 'leaking' requirements.

This is a duplicate option of 'B'.

This is a duplicate option of 'A'.