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Susan set up a lemonade stand to raise money for a children's hospital. She's selling cups of lemonade for $2.50$ $\$$ each and brownies for $1.50$ $\$$ each. She sells $280$ items and raises $540$ $\$$. This system of equations can be used to represent the situation:$\newline$$x + y = 280$$\newline$$2.5x + 1.5y = 540$$\newline$Which statement is correct?$\newline$(A) In the system of equations, $x$ represents the amount of money Susan raises from selling brownies, and $\$$$0$ represents the amount of money she raises from selling lemonade.$\newline$(B) In the system of equations, $x$ represents the number of brownies Susan sells, and $\$$$0$ represents the number of cups of lemonade she sells.$\newline$(C) In the system of equations, $x$ represents the number of cups of lemonade Susan sells, and $\$$$0$ represents the number of brownies she sells.$\newline$(D) In the system of equations, $x$ represents the amount of money Susan raises from selling lemonade, and $\$$$0$ represents the amount of money she raises from selling brownies.$\newline$How much money does Susan raise from selling lemonade?$\newline$$\$$____