The stock of Ripon Pharmaceuticals is trading at $44.$ There is a dividend of $3$ due $8$ months from now. What is the lower bound of a $1-$year European put option written on this stock with a strike price of $50,$ if the riskless rate of interest is $5\%$ with continuous compounding for all maturities?Question $4$ Answera.$6\mathrm{.}46$b$.11\mathrm{.}46$c$.$None of the numerical answers are correct.d$.6\mathrm{.}67$e$.0\mathrm{.}66$

Which one is correct