<span>A
pronoun is used to substitute a noun. In order for it to substitute, it must
have a clear antecedent. Personal pronouns are used to substitute nouns with
ownership. There are three persons point of view.1st person is when
the subject is the one who is speaking (e.g. I, me, my, mine, we, us, our, ours). 2nd person is
when the subject is the one being spoken to (you, your, yours). 3rd person is when the subject is
the one spoken about (he, him, his,
she, her, hers, it, its, they, their, theirs).
</span>
<span>The answer is D: us and subject.</span>
A MOOC is a massive open online courses. Believing the hype is something I cannot answer for you. It is an opinion, and it is yours to answer.
Everytime you come across such information in the article, you can be sure that quoting the percentage of overweight children reinforce the writerÍs position in the article in tht way : It provides a researched fact to support the authorÍs position. The writer can't just include imagined facts, he uses reliable information in order to enrich his opinion. Hope it helps!