Consider the graph below. System A cost $$1$M and has an MTBF of $500$ hours, System B cost $$1\mathrm{.}5$M and an MTBF of $800$ hours, Systems C cost $$3$M and has an MTBF of $800$ hours, and Systems C cost $$3$M and has an MTBF of $1000.$ If the weight for Life cycle cost is between $43\%$ and $45\%,$ in what order would you rank the systems from best to worse to maximize expected value?

$1.$ Neither system is dominant therefore no system is best.

$2.,,$ B

$3.$ A$,$B$,$C

$4.,,$