A senior MIS design class project team has developed the following schedule of activities for their project, using their best estimate of completion times. Both written and oral reports are required. Draw the project network. Can they complete the project in the 38 class days remaining until the end of the semester?

	Activity	Time	Immediate Predecessor
A.	Find client	4	---
B.	Write prospectus	2	A
C.	Obtain approval from client and professor	3	B
D.	Complete programming	12	C
E.	Do industry background research	10	---
F.	Write final paper	6	D, E
G.	Write oral report	5	D, E

What is the ES, EF, LS, and LF for activity D?

	A.	ES = 9 , EF = 21 , LS = 10 , and LF = 22
	B.	ES = 8 , EF = 20 , LS = 9 , and LF = 21
	C.	ES = 9 , EF = 21 , LS = 9 , and LF = 21
	D.	ES = 21 , EF = 27 , LS = 9 , and LF = 21