Which of the Following Is the Best Statement in Terms

Which of the following is the best statement in terms of footprinting a network?

A) Map the network, discover live hosts, discovery open ports, discover services
B) Discover live hosts, discover open ports, discover services, map the network
C) Find the network block, traceroute to the webserver, scan all hops looking for segments
D) Call the front desk and ask to talk to the network administrator. Tell him that network topologies must be a matter of public record for investors and you want a copy mailed right away.