CompTIA A+ Core 2 Question E-57

A user gets a warning from their ISP about illegally downloading copyrighted movies. The user insists that they did not download any movies and calls a technician to implement stronger small office home office (SOHO) security. Which of the following will allow only known workstations to connect to the SOHO router?

A. WPA password
B. Static IPs
C. MAC filtering
D. WEP password