> Three activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical). Activity details are in the following table: Activity A B C Normal Time Crash Time Normal (days) (days) Cost 7 $4,500 4 2 $1,200 11 9 $4,000 Total Cost with Immediate Crashing Predecessor(s) $4,900 $2,900 A $6,000 B a) Activity that should be crashed first to reduce the project duration by 1 day is Fine X Activity 7 B 4 C 11 Please copy and paste data from text area below, Selected delimiter: Tab Normal Time (days) Crash Time (days) 6 $4,500 $4,900 2 $1,200 $2,900 9 $4,000 $6,000 B Done