1. The problem asks to find the daily interest rate given an annual interest rate of 28.8%. 2. The formula to convert an annual interest rate to a daily interest rate assuming simple division is: $$\text{Daily Rate} = \frac{\text{Annual Rate}}{365}$$ 3. Important note: We assume 365 days in a year for this calculation. 4. Substitute the given annual rate 28.8% into the formula: $$\text{Daily Rate} = \frac{28.8}{365}$$ 5. Calculate the division: $$\text{Daily Rate} = 0.0789041095890411\%$$ 6. Round to five decimal places: $$\text{Daily Rate} \approx 0.07890\%$$ 7. Therefore, the daily interest rate is approximately 0.07890%, which corresponds to option c.