I believe it is persuasive. You're trying to get people to help preserve the mountains, da? That essay is trying to persuade them
A serious traveler always carries the best gear

In the English language, the word "who" is almost always used as a pronoun.
It represents a person, similar to the words "I" and "me".
B) Summarizing the text that the group has read
C) Sharing an idea, claim, or theory about the story
D) Asking other participants questions about what they feel