Baruch College data shows that demand for Apps Design $101$ has been changing over the last $5$ years: Year Actual Demand$1550025700360004590055300$What is the forecast for year $6$ using a $3$ years weighted moving average?$($The weights are: Yr $3=0\mathrm{.}10,$ Yr$.4=0\mathrm{.}35,$ Yr$.5=0\mathrm{.}55)$a$\mathrm{.}5610$ b$\mathrm{.}5000$ c$\mathrm{.}3060$