Refer to the exhibit:

In this VLSM addressing scheme, what summary address would be sent from router A?

A.
172.16.0.0 /16

B.
172.16.0.0 /20

C.
172.16.0.0 /24

D.
172.32.0.0 /16

E.
172.32.0.0 /17

F.
172.64.0.0 /16