The following table provides the normal and crash time (in weeks) for a project as well as the crash cost per week for the 4 project activities. The precedence relationships for the activities are provided in the network model.

Activity Normal Time Crash Time Crash Cost / week ($)

A 4 2 4000

B 5 2 2000

C 4 3 2000

D 2 1 3000

Project newtworkProject starts with Activity A; B and C follow A; D is done after B and C;

Type your answers for the following 3 questions in the box below. Use capital letters and no spaces. Example: ABC

The normal critical path is:

a. A-C-D

b. A-D

c. A-B-D

d. B-D

The normal project duration is:

a. 5 weeks

b. 6 weeks

c. 10 weeks

d. 11 weeks

The best choice for an activity to be crashed in order to reduce the project duration by one week would be:

a. A

b. B

c. C

d. D