Which two of the following Class B IPv4 networks are reserved by IANA for private address assignment and private routing?

(Choose two)

A.
128.0.0.0

B.
169.16.0.0

C.
169.254.0.0

D.
172.16.0.0

E.
172.20.0.0

Explanation/Reference:
172.16.0.0/16 ­ 172.31.0.0/16 Class B addresses are reserved for both private assignment and routing.

169.254.0.0/16 is an APIPA address, and used only locally (see http://tools.ietf.org/html/rfc3927)
169.16/16 and 128.0/16 are public IPv4 addresses and should not be used for internal routing.