Josh went to CIBC for a mortgage and borrowed $($ $ $300,000).$ He was incredibly disappointed to see how high$-$interest rates were and had no choice but to lock in at a rate of $(4\%)$ compounded semi$-$annually with amortization over $25$ years. Since his pay is deposited at the end of each month, Josh thought it best to time the mortgage payments with the same monthly end date. He is$,$ however, wondering how many years he would have saved if instead he had signed up for accelerated weekly payments. Select one: a$.6\mathrm{.}3$ years b$.3\mathrm{.}1$ years c$.3\mathrm{.}5$ years d$.4$ years e$.2\mathrm{.}5$ years