Two public investment alternatives are available: Al and A$2.$ Their respective total benefits, costs, and first costs are given in present worth as follows:Present WorthProposalsAlA$2$$$400$$$700$$$100$$$300$C$$100$$$200$These alternatives have the same service life. Assuming that there is no do$-$nothing alternative, which project would you select, calculating on the basis of the benefit$-$cost ratio on incremental investment $($BCi$)?(10$ points$)$