Final answer:
Resource leveling and resource smoothing are two techniques used in project management to manage resources efficiently. Resource smoothing may alter the critical path whereas resource leveling will not.
Step-by-step explanation:
Resource leveling and resource smoothing are both techniques used in project management to manage and allocate resources efficiently. The most accurate statement regarding resource leveling and resource smoothing is option 3) Resource smoothing may alter the critical path whereas resource leveling will not.
Resource leveling is a technique used to address resource overallocation by adjusting the project schedule to even out resource demand. It aims to minimize fluctuations in resource utilization, but it may result in changes to the critical path if activities need to be delayed or rescheduled.
On the other hand, resource smoothing is a technique used to balance resource demand within the available constraints without changing the project schedule or critical path. It redistributes resource workloads within their defined limits, ensuring a consistent flow of resources throughout the project.