You have started a project to build a fence. You plan to start the project on June 5th and need to finish on June 13th. Listed below are the tasks of the project. On June 7th how much slack does Task B have?Task A: Clear garbage & stones) from the lawn (takes 1 day and links to project start)Task B: Order lumber (takes 3 days links to project start) Task C: Build the fence (takes 5 days and is dependent on tasks A and B being completed. Task D: Paint the fence (takes 1 day and is dependent on tasks C being completed. 10-days 2-days 1-day 7-days 0-days