You should chose “One meaning is the opposite of unpleasant” because the rest is like yeah obvious, but this isn’t really shown and you’d know that if you know the word unpleasant.
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"The Crucible" She was a witness for the court in the witch trails.
If the story "Two Kinds" had been told through Suyuan's point of view, then first person narration would be appropriate. First person is often the most personal.