$22)$ For the Selective Reject ARQ protocol, if the probability that it will take exactly $2$ attempts to transmit a frame successfully is$0\mathrm{.}25\%,$ the probability of receiving a frame in error is given by:$($a$)25\%($b$)50\%($c$)100\%($d$)$ neither a not b nor c$22\mathrm{.}1($a$)($d$)$The maximum line utilisation is given by;$($a$)50\%($b$)75\%($c$)25\%($d$)100\%22\mathrm{.}2($a$)$