B.
"Stay where you are and we will send someone as soon as possible," the police officer had assured him.
A) have you seen him lately?
b)Does she ever set the table properly
c) Have I helped people find themselves?
d) Does The Beatles ha broken any rules?
Well if we are careless and we pollute the earth it will slowly become un usuable but if we are careful and recycle then the resources that we have would last longer
Answer: Because
Explanation: Because is the only word that fits here and is gramatically correct in the first place, neverminding the fact that it says "Best Completes" <em>Because</em> is the only word that is gramatically correct in this situation.