Which type involves construction made primarily of fire-resistive materials associated with wood?

The type that involves construction made primarily of fire-resistive materials associated with wood is Type II construction. Type II buildings are characterized by non-combustible materials for structural elements, where wood can still be used in certain applications. This approach allows for enhanced fire resistance and is favored for commercial buildings that need to meet stricter fire safety codes while still incorporating wood elements in their design.

Type III, while also involving wood, typically allows for a mix of combustible materials throughout the structure and is often referred to as "ordinary" construction. Type IV, known as heavy timber construction, involves large, heat-resistant wood elements but is fundamentally different from Type II in its core structure. Type V construction refers to the most combustible type of construction, where wood is the primary material making up the entire building, which does not align with the fire-resistive focus highlighted in the question. Thus, focusing on the fire-resistive attributes helps clearly identify why Type II construction is the correct choice.