With using the network diagram below, find out; a$)$ Early and late stare finish times $(5$ p$).$ b$)$ Total completion time of the diagram $(3$ p$).$ c$)$ Total float values of the activities $(6$ p$).$ d$)$ Highlight the critical path on the diagram $(4$ p$).$

$4$ Locate an activity with independent float, if available. $(5$p$)$