How would you protect Earth from an asteroid?

An object with a high mass close to the Earth could be sent out into a collision course with the asteroid, knocking it off course. When the asteroid is still far from the Earth, a means of deflecting the asteroid is to directly alter its momentum by colliding a spacecraft with the asteroid.

Explanation:

Hope I could help :))

thats not even an aswer choice

the answer would be   10%