As time elapses in a project, what happens to the opportunity to alter costs?

As time progresses in a project, the opportunity to alter costs decreases due to several factors intrinsic to project management and execution. Early in a project, there is typically greater flexibility to make adjustments since many decisions regarding design, resources, and processes are still open. Change orders can be implemented more easily, and stakeholders may be more amenable to alterations when the project is in its initial phases.

However, as the project advances, commitments become more solidified; materials may have already been purchased, contracts signed, and resources allocated. These factors create a scenario where making changes often incurs higher costs or logistical challenges. Additionally, the project's timeline and budget constraints become more stringent as deadlines loom, leaving less room for budget reallocation or redesign.

Consequently, the freedom to manage and adjust costs effectively narrows as key decisions are enacted and physical work progresses, leading to a corresponding decrease in the ability to alter costs over time. Thus, the correct choice highlights this fundamental aspect of project management dynamics.