MARR $=10\%.$ You are deciding between two mutually exclusive projects. Project $A$

costs $$6979$ today and returns $$800$ in four years, increasing by $$500$ each year for

$6$ additional years $($so $$1300$ in five years, $$1800$ in six years, etc$).$ Project B costs

$$1211$ today and returns $$300$ each year in those same years $($years $4$ through $10).$

Doing nothing is not an option. The Incremental IRR is within $0\mathrm{.}5\%$ of which of the following?