A User Is No Longer Able to Browse the Internet

Multiple Choice

A user is no longer able to browse the Internet after returning from vacation. The user is able to log in and navigate to the local intranet, but not to any outside sites. A technician pings a well-known website by name but gets no reply. The technician then pings its IP address and gets a reply. Which of the following commands will MOST likely resolve the issue?

A) ipconfig /all
B) ipconfig /flushdns
C) ipconfig /release
D) ipconfig /setclassid