Answer:
Option: A) is in G minor.
Step-by-step explanation:
Wolfgang Amadeus Mozart was born in Austria and a son of Johann Georg Leopold Mozart, a famous German composer and violinist. Mozart's Symphony No.40 composed in 1788, which features emotions of darker and stronger. He composed this symphony in the movement of Sturm und Drang which was becoming popular among the Austrian and German composers. Mozart chooses to present this piece in the key of g minor.