Bob earns $$48,000$ per year and his wife Susan earns $$50,000$ per year gross. They have debt as follows: a car loan with $$450$ per month payment, a visa which requires a minimum monthly payment of $$100,$ and combined student loan payments totaling $350$ per month. The bank allows a $32\%$ GDS and $40\%$ TDS$.$ The house they wish to purchase has been appraised at $$210,000,$ however the purchase price is $$215,000$ because it is a seller's market. Monthly property taxes and heating costs are $$400$ per month total. They are applying for a conventional mortgage $($using $80\%$ maximum as the bank's rule$)$ and their selected term is at $3\mathrm{.}5\%$ interest lender posted rate and the amortization is $25$ years. Currently, consider the Bank of Canada benchmark rate to be $5\mathrm{.}25\%$ for stress test purposes on conventional mortgages. Which of the following is closes to the maximum amount of a mortgage loan that Bob and Susan qualify for, based on the Total Debt Service $($TDS$)?$ a$.$ $$393,908$ b$.$ $$350,250$ c$.$ $$362,554$ d$.$ $$322,252$