The best modification of this sentence would be answer choice A. The children were delighted by the acrobats swinging through the air on the stage.
This sentence has the proper structure and the tense and number of the subject/s and verb/s agree. Unlike answer options C and D, the acrobats are still the ones swinging and the children are still the ones delightfully observing in choice A. The reason B is incorrect is because the prepositions are in an awkward order and make he sentence sound choppy. Answer choice A meets all the criteria for a grammatically correct sentence.
I hope this helps! :)
Answer:
Umm I mean I would advice ageinst keeping it in but if you really want to make sure to keep it clean and dissinfect it.
Explanation:
A example of a fused sentence is: Heather read the novel her friend watched the movie
Vending machines, because each is just a word telling you that both were empty. Vending machines is what the whole sentence is based on.