$5.$ Assume the following events and actions take place. Which of the following statements is true? Event Action$1$ P$1$ requests and is allocated R$1\mathrm{.}2$ P$2$ requests and is allocated R$2\mathrm{.}3$ P$3$ requests and is allocated R$3\mathrm{.}4$ P$1$ requests R$2\mathrm{.}5$ P$2$ requests R$3\mathrm{.}6$ P$3$ requests R$1.$