Quoted By:
Which one of these is true
A = We are alone in the universe, Earth is the only planet in the universe that has life on it
B = We are not alone, but the universe is so vast no two life forms will ever meet
C = The aliens know about us, but they leave us alone
D = The aliens know about us, they study us from afar
E = The aliens know about us and they actively study us
F = The aliens are among us