I would say A because the SETI Institute said, "Philip Morrison and Guiseppe Cocconi analyzed how two civilizations separated by many light years of space might use electromagnetic radiation to communicate.
Electromagnetic radiation is the general term for the more familiar light and radio waves."
So there you go!
No it will actually help it
Answer:
CSS is easy
Explanation:
CSS is like the color or your sylte for a webpage.
The answer to this question is C.
Monitor
Printer
Headphones
Computer Speakers
Projector
GPS
Sound Card
Video Card
Braille Reader
Speech-Generating Device