As a consultant to Mr$.$ Businessman, you are asked to rank the investment proposals proposed by Mr$.$ Financer by using Payback Period method. If the cut$-$off period is $3$ years, which proposal should be selected? $(6$ marks$)$ What is the chief disadvantage of this method? $(3$ marks$)$ Why would anyone want to use this method? $(3$ marks$)($Please show your calculation, list all input data and round your answer to two decimal points$)($Total $12$ marks$)$