Which statement about the requirements of eBGP multipath is true?

A.
The path should be learned from an external or confederation-external neighbor.

B.
The path should be learned from an internal neighbor.

C.
The IGP metric to the BGP next hop should be equal to the best-path IGP metric, unless the
router is configured for unequal-cost iBGP multipath.

D.
The path should be learned from an IGP protocol.