23. LO.2 In 2021, Kathleen Tweardy incurs $30,000 of interest expense related to her investments. Her investment income includes $7,500 of interest, $6,000 of qualified dividends, and a $12,000 net capital gain on the sale of securities. Kathleen asks you to compute the amount of her deduction for investment interest, taking into consideration any options she might have. In addition, she would like your suggestions about any tax planning alternatives that are available. Write a letter to her that contains your advice. Kathleen lives at 11934 Briarpatch Drive, Midlothian, VA 23113.