Examine the topology and the configuration output. If the show ip bgp summary command was issued from R1, how many prefixes would it have in the State/PfxRcd field?
Exhibit:

A.
0

B.
1

C.
2

D.
3

Explanation:

VERY NICE QUESTION!

Incomplete configuration!!
There is NO NETWORK command, so NO prefixes can be advertised!!!

DO NOT THINK ABOUT SYNCHRONIZATION BECAUSE IS NOT ENABLED
When synchronization is enabled, BGP should not advertise a route externally UNTIL all routers within the AS have learned the same route by an IGP.