use/ lines/ telephone/ can/ networked/ Computers/ modems.

• A. 
  Using modems and telephone lines can be networled for computers
• B. 
  For computers using modems and telephones lines, people can be networked.
• C. 
  Modems and telephone lines can be networked by computers.
• D. 
  Computers can be networked using modems and telephone lines.