which type of sentence is this? during last nights thunderstorm, a flurry of tiny hailstones danced across…

which type of sentence is this? during last nights thunderstorm, a flurry of tiny hailstones danced across the roof of our house. simple compound complex compound - complex
Answer
Brief Explanations:
A simple sentence has one independent clause. The given sentence "During last night's thunderstorm, a flurry of tiny hailstones danced across the roof of our house." has one subject - "a flurry of tiny hailstones" and one predicate - "danced across the roof of our house". The pre - posal phrase "During last night's thunderstorm" is just an adverbial phrase modifying the main clause. There are no other clauses (dependent or independent) combined with it.
Answer:
A. simple