should be crashed first, adding Two activities on the same crtical path are candidates for crashing on a CPM network Activity details are in the table below To cut one day from the project's duration, activity project cost Activity One TWO Normal Time 8 days 10 days Normal Cost $5.0 $4,000 Crash Time 7 days 8 days Crash Cost $6,800 $5,000 O A One: $800 OB Two $5,000 OC One 56.800 OD. Two $500 E One or Two should be crashed, S1,300 East Texas Seasonings is preparing to build one processing center to serve its four sources of seasonings. The four source locations are at coordinatos shown below. Also, the volume from each source is provided X-coordinate Y-coordinate Volume Athens, Texas 150 Beaumont Texas Carthage, Texas 70 100 Denton, Texas 50 50 400 30 20 10 30 10 350 What is the center of gravity? OAX-28 125, Y = 31 25 OBX = 32500, Y = 35000 OC. center of gravity = 28 OD. X = 27.5 Y = 40 E. X = 32.5 Y = 35 The critical path for the network activities shown below is with duration Duration Immediate Predecessors Activity B C D F A 9 4 5 A B, C, D OA A-D-E, 13 OB. A-B-D, 10 OC A-B-E: 11 OD. A-B-C-D-E, 24 O E. C-E14 the critical path for the network activities shown below is with duration Immediate Predecessors Activity Duration 10 8 4 2 6 C D E A B,C,D O A. B-E 14 OB. ACE, 20 OC. A-B-D-E, 26 OD. A-D-E, 18 O E. None of the above