1. Roberta borrows $50,000 to invest in the stock market. She pays $3,000 in interest on that loan. Her investment income from that $50,000 of investments is $1,800, and her total investment income from all of her investments is $2,300. Her only investment expense was $100 for a class she took on how to make money buying stocks. How much of her $3,000 of interest is deductible?

   		Zero.
   		$1,700.
   		$1,800.
   		$2,200.
   		$2,300.