(3) ABC Tech has been contracted to install a software system for a client company. Relevant data for the project which consists of activities A, B, ..., H are given in the table below. The project network which includes calculations of earliest start, latest start, earliest finish, and latest finish follows the table. Activity Immediate Predecessors None B 14 Normal Time Crash Time Normal Crash (days) (days) Cost Cost 7 7 $1,500 $1,500 9 7 $1,000 $1,700 10 $600 $1,200 3 2. $400 $650 2. 1 $1,000 $1,400 7 5 $300 $400 8 6 $1,000 $1,120 4. 4 $500 $500 D B, C E D 2 F E 5 6 G E H F, G The figure below displays the network representation of the project. 2633 7116 B(9) 12/21 F17) 27134 017 A7) 07 21124 D(3) 21124 24126 E(2) 2426 3438 H(4) 3438 7121 C(14) 7121 26/34 G(8) 26134 The figure below displays the network representation of the project. 7|16 26133 B(9) F17) 12/21 27134 017 21/24 2426 A(7) D(3) E(2) 017 21|24 24/26 7121 2634 C(14) G(8) 7121 26]34 3438 H[4) 34[38 a) [2 points] What is the critical path? OACDEGH OACDEFH OABDEFH OABDEGH b) [1 points] What is the project completion time (duration of the critical path)? c) [2 points] What is the total cost of the project with normal costs? (DO NOT USE COMMA IN NUMBER) $ d) [3 points) Which activity should be crashed to reduce project completion time by 1 day at minimum cost? d) [3 points] Which activity should be crashed to reduce project completion time by 1 day at minimum cost? OG OF OB OC OD OE e) (3 points] What is the incremental cost in part d)? D) [2 points] Which activity or activities should be crashed to reduce project completion time by one more day? OF and G OD OE B and C g) (2 points] What is the incremental cost in part 1)