A project with an initial investment of $$500,000$ has the following CF$\text{'}$s for seven years: Year $1$: $$100,000$ Year $2$: $$100,000$ Year $3$: $$100,000$ Year $4$: $$100,000$ Year $5$: $100,000$ Year $6$: $$100,000$ Year $7$: $$100,000$ Assuming an interest rate of $4\%,$ what is the discounted payback period of this project? A$.5\mathrm{.}00$ years B$.5\mathrm{.}25$ years C$.6\mathrm{.}00$ years D$.5\mathrm{.}55$ years