Which of the following allows for Simple AD to resolve names using both DNS servers within your VPC and private DNS servers outside of your VPC

Answer options:

A.DNSName Resolution
B.DNSNameSet
C.DHCP options set
D.Route53

Answer - C
If you want your Simple AD to resolve names using both DNS servers within your VPC and private DNS servers outside of your VPC, you can do this using a DHCP options set
For more information on DNS with Simple AD please visit the below URL:
http://docs.aws.amazon.com/directoryservice/latest/admin-guide/dns_with_simple_ad.html