What is the name and the location of the file that lists the key values used by extract for encryptions and Server Collector for decryption?

What is the name and the location of the file that lists the key values used by extract for
encryptions and Server Collector for decryption?

A.
KEYGEN file in the GoldenGate data location

B.
COBGEN file in the GoldenGate installation location

C.
GGSKEY file in the GoldenGate data location

D.
GGSKEY file in the GoldenGate installation location

E.
ENCKEYS file in the GoldenGate installation location

Explanation:
Reference:

http://download.oracle.com/docs/cd/E15881_01/doc.104/gg_wux_ref_v104.pdf