In terms of resource management, how critical is 'labor scheduling' for the timely completion of construction projects?

A$)$ It has minimal impact since projects are more dependent on material availability.

B$)$ Vital, as efficient labor scheduling ensures that the right skills are available at the right times, preventing delays and reducing costs.

C$)$ Only important in large$-$scale projects.

D$)$ It's a modern concept that has not been proven to affect project timelines significantly.