Which construction type is described as exterior noncombustible walls with combustible interior framing, where interior elements can burn?

Which construction type is described as exterior noncombustible walls with combustible interior framing, where interior elements can burn?

• A. Type I: Noncombustible materials.
• B. Type II: Exterior and interior elements noncombustible.
• C. Type IV: Heavy timber with noncombustible exterior.
• D. Type III: Exterior noncombustible walls with combustible interior framing; interior elements can burn and lead to collapse.

Answer: (D)