(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 Hare 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 Normal Time (days) Crash Time (days) Normal Cost Crash Cost A None 1 1 $1,500 $1,500 B A 8 3 $1,000 $1,400 C A 7 2 $600 $800 D B, C 3 1 $400 $650 E D 2 1 $1,000 $1,400 F E 6 4 $300 $1,200 E 4 3 $1,000 $1,400 H F,G 2 2 $500 $500 14120 F(6) 1420 The figure below displays the network representation of the project. 119 B(8) 119 011 9|12 A(1) D(3) 011 912 118 C(7) 219 1214 E(2) 1214 20122 H(2) 20122 1418 G(4) 16|20 a) [2 points] What is the critical path? OABDEFH OACDEGH OACDEFH 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) 13 points] Which activity should be crashed to reduce project completion time by 1 day at minimum cost? OB OG OF no