Which three actions will accomplish this?

Scenario: A Citrix Engineer wants to secure the Virtual Delivery Agent (VDA) communication by enabling end-to end encryption within an existing XenApp and XenDesktop environment. The environment has already been configured to provide external access through a NetScaler Gateway, but all other configurations are set to default.

Which three actions will accomplish this? (Choose three.)
A . Enable TLS on the StoreFront servers.
B . Add a certificate to the Delivery Controllers
C . Enable TLS on the Delivery Controllers.
D . Add a certificate to the VDAs.
E . Add a certificate to the StoreFront servers.
F . Enable TLS on the VDAs.

Answer: BCF