They cannot experience anything by themselves
Answer:
Grendel terrorizes Heorot because he is jealous of people's happiness. His jealousy takes advantage of him, and he decides to attack Heorot.
<span>I am assured that option ‘’D. Jenny and Sam’s wedding was joyful.’’ of course is the right one, because according to the basic grammar rules, when we have an example where the main object ( the wedding) belongs to several pronouns (Jenny and Sam), we need to put possessive "s" ONLY after the last pronoun (in that case after the second).<span>
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