Which BGP attribute should you use to influence inbound traffic to use the primary link t hat is sourced from ISP C?

Click the Exhibit button.

The exhibit shows a BGP multihomed network connecting to ISP A and ISP B. The secondary link is to be used only in a failover scenario in which the primary link is not usable. Which BGP attribute should you use to influence inbound traffic to use the primary link t hat is sourced from ISP C?

A.
multiple exit discriminator (MED)

B.
local preference

C.
AS path

D.
origin