The word "either" is a correlative. The answer is D. This is because a correlative conjunction connects two nouns and ideas that relates to each other. Either uses "or" so it connects two choices in one situation.
The answer is can't it means can not
Your answer is going to be B I'm really good at English
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:
Jay was too sick to play basketball, so he and I played video games instead.