The internet as a surveillance network

Government surveillance agencies have a tendency to accumulate strange new powers during times of panic. The US National Security Agency (NSA) now has the ability to monitor the communications of suspected individuals as well as the communications of people within some number of hops of any suspect. In the communication network above, which person is connected to the greatest number of people through 1 hop or less?

Clarification: Options (A, B, C, and D) correspond to the people in order from left to right respectively.

Details and Assumptions:

• Each dot represents a person.
• Each line represents communication between the people on either end.
• If X communicates with Y, and Y communicates with Z, we say that X and Z have a 1-hop connection, and that X has a 0-hop connection with Y.