Answer:
A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means.
Explanation:
heres the image
Pick b , im pretty sure it’s it
Hoi!
The correct answer is "A lifestream is a time ordered stream of documents that acts as a user's online diary."
Lifestreaming documents and shares daily moments of someone's online life. :)