The answer is D. Pertinent comes from the word pertain/pertaining, which means relevant.
It would be much easier to help you if you mentioned what's the name of the story. Anyway, I think I've got what you mean. I hope you will find it helpful.
Here are the answers:
1. C.) Blackie<span> was the original leader of the gang.
2. The </span>C.) staircase<span> stuck up like a jagged tooth.
3. The gang’s plans for the day were decided by </span>B.) a vote.
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Sorry if something is wrong. In my view all of them are correct.
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Answer: The world of Forms is “ideal” rather than material; Forms, and beauty, are non-physical ideas for Plato. Yet beauty is objective in that it is not a feature of the observer's experience.
