systems to locate viewers networks to transmit signals printing to create the images software to search for images
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A movie studio will use two methods of communication, television and the Internet, to advertise a new movie. Which of the following must both methods of communication use in order to show the advertisements to viewers around the world?
Possibilities:
- systems to locate viewers
- networks to transmit signals
- printing to create the images
- software to search for images

networks to transmit signals