Construct a precedence network based on the same activity descriptions below . Show all your work . Label activities in the network by their activity letters and node numbers . Remove all redundant dependencies and arrange activities in proper sequence steps . VIN The predecessors to Activity Z2 are Activities L , C and R. The successors to Activity B are Activities EI , S , W and D2 . Activity El also depends on Activity M. Activity U and F follow Activities W and D2 , and precede Activities E and R1 . Activity Y follows Activities C and R , and followed by Activity L. Activities D , M , and B start the project . Activity C can start when Activities D , El and S are completed . Activity R cannot begin until Activity W is finished . Activity I follows Activity D and precedes Activity L. Activity E follows Activities C and R