What import and export route target would you add to the Cyan_Indigo vrf on Certkiller 12 to enable

Note: Please refer to the Case Study Domain.com Tallin What import and export route target would you add to the Cyan_Indigo vrf on Certkiller 12 to enable the overlapping VPN?

A.
1:10

B.
1:20

C.
4:11

D.
4:20

E.
4:21

F.
1:1001