The weekly demand for the last month has been recorded as $45,55,24,$ and $34.$ What is the demand forecast for the first week of the next month if using a Moving Average method by N$=3?$a$\mathrm{.}29$b$\mathrm{.}37\mathrm{.}66$c$\mathrm{.}39\mathrm{.}5$d$\mathrm{.}34$