Answer: c. $3000
Explanation:
Crashing Critical Part A, B, D, F, G.
Crash A by 2 days would increase cost from $7,000 to $8,000
= 8,000 - 7,000
= $1,000
Crash B by 2 days would increase cost from $5,000 to $7,000
= 7,000 - 5,000
= $2,000
Crash cost of four days:
= 1,000 + 2,000
= $3,000
