Answer:
みやこ
きれい
ようこそ
うれしい
ふろしま
ふねのなか
みなみおおさか
はまちかま
たかいやまひくいつくえ
ちいさいいす
あたたかいひ
ねんまつ
あおいはな
きついくつ
ぃまつり
ふるいれきし
しまもとりか
すてきなところ
はやいなつやすみ
Explanation:
the hiragana for these words
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.