What will happen to a project's schedule if an activity on the critical path is delayed due to limited resource availability?

a$.$ Nothing will happen to the project's schedule if an activity on the critical path is delayed.

b$.$ The project's schedule will slip only if the float$/$slack period for the critical path activities is not enough to resolve the resource overload issue.

c$.$ The project's schedule will slip only if the float$/$slack period for the noncritical activities is not enough to resolve the resource overload issue.

d$.$ There is never a delay in the critical path, because it is the longest path through the network.