What form or rule is demonstrated in this sentence? Some people try to slalom when the water is calm, yet that is when many accidents occur.

comma before an interjection
comma linking two independent clauses joined by a conjunction
comma fragment

"edna, dear, are you not coming in soon? " he asked again, this time fondly, with a note of entreaty. "no, i am going to stay out here." "this is more than folly," he blurted out. "i can't permit you to stay out there all night. you must come in the house instantly." which best explains how chopin's use of language represents her style?