"A. Mom opened the oven, and fragrant smells immediately began to fill the room" is a compound sentence because it combines two, full independent clauses that can be written on their own.
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I'm still going to answer them all!! :D
Umm... is that all your thing says or is there more to it is there a picture for the question I need more details if I am going to help you
Edmund Husserl (1859—1938) was an influential thinker of the first half of the twentieth century. His philosophy was heavily influenced by the works of Franz Brentano and Bernard Bolzano, and was also influenced in various ways by interaction with contemporaries such as Alexius Meinong, Kasimir Twardowski, and Gottlob Frege.
"Today nobody brought his or her instrument" is correct. It is common for people to use "their" in a sentence like this, but "his or her" is the more proper term.