Answer:
b. both can shorten the time needed to finish a project.
Step-by-step explanation:
Fast tracking technique occurs when actions that would have been performed sequentially are now performed in parallel or simultaneously. This reduces the project time.
Crashing technique is used when fast tracking technique is insufficient to meet the time constraints. Resources are inputted into the project at least cost. Additional cost is compared to the schedule to obtain the fastest completion at least cost.
Both fast tracking technique and crashing technique are used to reduce project time