A pension fund that begins with $250,000 earns 15% the first year and 10% the second year. At the beginning of the second year, the sponsor contributes another $300,000. The dollar-weighted and time-weighted rates of return, respectively, were

12.1% and 12.5%.

12.5% and 11.7%.

12.5% and 12.1%.

11.7% and 12.5%.