The correct answer is B, because "who all students love" should definitely follow Mr. Rapture, and not "chemistry lab" like in A, and there should be a comma because this is an appositive.
The purpose of a conclusion paragraph is to "sum up your whole essay, or argument in one paragraph." Conclusion paragraphs usually consist of facts that you have already stated in your body paragraphs. Your final claim (which side of the argument you are on) and your counterclaim (the opposite side you are on) if you are writing a argument essay.
Hope this helps.
<span>Among the qualities listed on the Human Relations Scale, the most important one for buidling new relationships is self confidence. The correct option is A. Having good self confindence allows one to take risks knowing that if things go wrong, they can be put right again.</span>
Be careful!
Hope this helps
