You purchased $200$ shares of XYZ common stock for $$134$ a share three years ago. The stock pays dividends of $$4\mathrm{.}50$ a share at the end of every year. Dividends are reinvested. If you sell the stock in $3$ years for $$140,$ what will be your $6-$year effective annual return? Round to two decimal places. Select one: a$.5\mathrm{.}21\%$ b$.3\mathrm{.}69\%$ c$.4\mathrm{.}78\%$ d$.4\mathrm{.}03\%$