please answer A-G asap, this is one whole question. ty

A network consists of the following list. Times are given in weeks Activity Predecessor a a m b 14 A 5 11 B 3 3 9 B 6 14 10 5 D D AB 3 un 7 E CD 4 6 F E 6 8 13 a. What is the project length? Select) b. What is the project variance? Select c. What is the project standard deviation? Select) d. What is the variance for activity B? Select e. How much slack is there in activity E? Select f. What is the probability that the project will be complete in 32 weeks or less rounded to the nearest percentage)? (Select) 8. How many weeks would be required to be 95% sure of project completion? Select