Which type of IP address is a registered IP address assigned by the Internet Service Provider (ISP), and represents one or more inside local IP addresses
externally?

A.
Inside local address

B.
Outside local address

C.
Inside global address

D.
Outside global address

Explanation:
An inside global address is a registered IP address assigned by the ISP that represents internal local IP addresses externally.
An inside local address is an IP address (usually private) assigned to a host on the internal network. The inside local address is usually not assigned by the service
provider, nor used to represent one or more inside local IP addresses externally
An outside local address is the IP address of an outside host as it appears to the internal network. It is not used to represent one or more inside local IP addresses
externally
An outside global address is the IP address assigned to a host on the external network by the host owner. The address is allocated from a globally routable address
space. It is not used to represent one or more inside local IP addresses externally
Objective:
Infrastructure Services
Sub-Objective:
Configure, verify, and troubleshoot inside source NAT

https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/4606-8.html
http://www.ciscopress.com/articles/article.asp?p=25273