The Answer is C, because that will allow you to better understand what the advertisements are focusing on.
2 goes with the second one (control rods).
3 goes with forth one (mass of unstable fuel)
4 goes with one (shield)
1 goes with third one (moderator)
5 goes with coolant
Answer:
If you can make a prediction based on what you see now, we use going to. For example, “You're driving too fast, you're going to hit the car in front!”
Answer: I think it's "he wants students to feel comfortable when they're in his office." (A?)
Explanation: