The answer is B i believe
Answer: 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 :))
<span>They are not visible because the chromatin coils up,shortens,and thickens.</span>
