Final answer:
The correct answer is a) Flat-panel ICF. This construction method uses two parallel panels with a gap between them to form the concrete mold.
Step-by-step explanation:
The correct answer is a) Flat-panel ICF. Flat-panel ICF, also known as Insulated Concrete Formwork, uses two parallel panels with a gap between them to form the concrete mold.
This construction method involves placing insulation material, such as expanded polystyrene foam, between the panels. The panels are then held together with ties, creating a cavity in which concrete is poured.
This method offers thermal insulation, strength, and durability while reducing energy consumption and construction time. It is commonly used in constructing walls for residential and commercial buildings.