the following Payoff Table to answer questions in Problem Set Q$2$S$1$S$2$S$3$S$4$S$5$Buy $0$ Unit$0000$Buy $1$ Unit$-770886-14$Buy $2$ Units$-2769335134$Buy $3$ Units$6233$Probability$0\mathrm{.}20\mathrm{.}4340\mathrm{.}1-10\mathrm{.}1840\mathrm{.}2$Question: What is the optimal decision if the manager wishes to minimize the maximum regret $($Minimax Regret$)?$ a$.$ Buy $2$ unitO b$.$ Buy $3$ unitO c$.$ Buy $0$ unit $$ d$,$Buy $1$ units