Only answer if you're certain and show your work, please.

The following represents a project that should be scheduled using CPM:

	IMMEDIATE PREDECESSORS	TIMES (DAYS)
ACTIVITY		a	m	b
A		1	5	9
B		1	2	3
C	A	3	5	7
D	A	1	4	10
E	B	1	2	3
F	C,D	1	2	12
G	D,E	1	6	8
H	F,G	2	3	8

b. What is the critical path?

	A-C-F-H
	A-D-F-H
	A-D-G-H
	B-E-G-H

c. What is the expected project completion time? (Round your answer to 3 decimal places.)

Project completion time days

d. What is the probability of completing this project within 20 days? (Do not round intermediate calculations. Round your answer to 4 decimal places.)

Probability