A user calls to report that a PC cannot access the intemet. The network technician asks the user to issue the command ping $127\mathrm{.}0\mathrm{.}0\mathrm{.}1$ in a command prompt window. The user reports that the result is four positive replies. What conclusion can be drawn based on this connectivity test? a$)$ The PC can access the network. The problem exists beyond the local network. b$)$ The PC can access the Internet. However, the web browser may not work. c$)$ The TCP$/$IP implementation is functional. d$)$ The P address obtained from the DHCP server is correct.