You are preparing a critical path schedule. Which sequence of activities BEST reflects proper project coordination for a slab-on-grade building?

Giải thích

Work must follow physical dependencies. Underground utilities are installed before the slab is poured, the slab is poured before walls are framed, and rough-in trades precede finishes. Option b follows that logic. Options a and c reverse dependent tasks (you cannot frame before the footing or roof before excavation), and option d puts paint before rough electrical, which forces demolition and rework.