I believe your answers are:
1. C
2. A
3. C
I hope that helps! :)
Principles
I think principal is not right because it doesn’t look right.
I think the question is asking which sentences include misspelled words.
It's sentences 2 and 4 and the misspelled words are:
"success" and "environment" in sentence 2: they are misspelled in the original text.
"cold-weather gear" and "chose" in question 4
Additionally "anxious" is misspelled in question 3.
Antonyms for "delicate" include: sturdy, robust, strong, indestructible .
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Note: These are words that come to mind.
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What dream are you talking about