Answer:
D, the last one, You're circumstances are different.
Explanation:
The contraction "You're" Is actually the words "You are" stuck together. If this was a proper sentence it would have used the possessive "Your" in place of "You're."
If a star is small, it will remain in the main sequence longer than a large star.
Answer:
B. I was able to grab the rope just as the canoe full of kittens was slipping away from the dock.
Explanation:
The other three options don't even come close to qualifying as the climax.