The third answer is your best choice.
<span>Its means the same period of time that you are in.</span>
Answer: a. Crash or collision
Explanation:
Context clues. The prior sentence is talking about an asteroid that struck the earth. When the word “struck” is used when describing an accident, the effect is almost always a crash. An impact is when one thing forcibly comes into contact with another. A crash (for example: car crash) also when two things forcibly come into contact with another.