Hi Maria,
Hopefully I can fit the bill for you! First thing to note is that this is a Justify question, meaning the correct answer choice will be filling in a missing premise that proves the conclusion to 100% certainty. So what is our conclusion? Buried in the middle of the stimulus, we can put together the end of the first and second sentences to infer that folktales possess deeper meaning. The premises on which this rest are:
P1: Folktales provide great insight into the wisdom of their respective cultures
P2: [Missing]
Conclusion: Folktales possess deeper meaning
So from diagramming the relevant part of the stimulus, we can see that the correct answer choice must link "insight into the wisdom of a culture" with "deeper meaning." Both are vague phrases, without any definition given by the stimulus, so the linkage will have to be direct and explicit to work. We can diagram it as:
Insight into Wisdom
Deep Meaning
Now that we know what to look for, let's dive into the answer choices:
(A)--Simply restates the premise about how folktales give insight, but doesn't link that to deeper meaning. Immediate Loser.
(B)-- Links insight into wisdom and deep meaning, and does so in the same
Insight into Wisdom
Deep Meaning
way that we need to justify the conclusion. Looks good, and if short on time, an instant winner.
(C)--Deals with a direct rebuttal of the initial sentence, which is not the argument that the stimulus actually makes. So irrelevant, and a Loser answer choice.
(D)--Links deep meaning to insight into wisdom of a culture, making it attractive. However, it does so in the wrong way:
Deep Meaning
Insight into Wisdom
So it's actually a Mistaken Reversal of the correct answer. This is where a good Prephrase really comes in handy.
(E)-- Back to irrelevancy, doing something similar to (C). The stimulus already assumes this to be true; what we're looking for is something that justifies the conclusion with 100% certainty, not leaves it open to being possibly true.
Hope this clears things up!