26. Carlita Rosarita bought $6,500 worth of stock with an initial margin of 60 percent. She held the stock for a year, during which time interest costs on her margin account were $200, then she sold the stock for $7,500. What was Carlita's return on equity (i.e., return on her own invested capital)? A) 40.8% B) 30.8% C) 20.5% D) 25.6%