What is the slack for activity B$?$ A$.0$ B$.1$ C$.2$ D$.3$ What is the expected duration of this project? A$.17$ B$.18$ C$.19$ D$.20$ Below are the project steps for the creation ofa television advertisement for Foolio, which is a new energy drink that the musician Coolio has created. Consider the following data for questions $1$ through $5$: Duration Description Activityls$)$ Preceding Activity$($days Create script for advertisement Book technical crew Book actors A Create propsBC and costumes Book location C Filming and editing $342$ D$,$ E