$1$ pointConsider the following two projects:Year $0$Year $1$Year $2$Year $3$Year $4$Project A$-$$$5,000$Year $5$$$2,000$$$3,000$$$4,000$$$3,000$S$3000$Project B$-$$$8\mathrm{.}000$$$4000$$$4\mathrm{.}000$$$4\mathrm{.}000$$$3\mathrm{.}500$$$3500$VWhat is the crossover rate ie$.$ the incremental $/$RR