Which sentence contains a misplaced or dangling modifier? a running is one way i deal with stress b sleeping peacfully, the thunder frightened me c the holiday season was filled with joyous celebrations d mrs. smith collected the research papers in alphabetical order

I think it's B) because a missing modifier is when a sentence is broke apart incorrectly and I don't think that B) is correctly separated. I could rearrange the sentence and make it say, "The thunder frightened me as I slept peacefully" and it would sound better. I hope I helped a bit.

Just go to edit profile adn then to preferences and find the option to change it and bam you got it.