(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. Ne ans Pol 15 Activity Immediate Predecessors Normal Time (days) Crash Time (days) Normal Cost Crash Cost A None 7 $1,500 $1,500 B. 9 7 $1,000 $1,700 A 14 10 $600 $1,200 D B, C 3 2. $400 $650 E D 2 1 $1,000 $1,400 F E 7 5 $300 $400 G E 6 $1,000 $1,120 H F G 4 4 $500 $500 The figure below displays the network representation of the project. 7116 B(9) 2633 F7) 12121 27134 3438 017 A[7) 017 2124 D(3) 21124 2426 E[2) 24126 H(4) 3438 7121 C(14) 7121 26134 G(8) 26134 a) 12 points What is the critical path OACDEGH OACDEFH OABDEH OABDEGH b) 11 points] What is the project completion time (duration of the critical path)? c) 12 points What is the total cost of the project with normal costs? (DO NOT USE COMMA IN NUMBER) d) 13 points which activity should be crashed to reduce project completion time by 1 day at minimum cost? OF 8 8 8 8 8 % .) 13 points What is the incremental cost in part d? 11 12 points which activity or activities should be crashed to reduce project completion time by one more day! OF and a OE 08 and I 12 pm What is the incremental cost in part