Which is correct from small to large sort in the following typical obstacles to the penetration loss?

Which is correct from small to large sort in the following typical obstacles to the penetration loss?
A . 12cm brick wall <24cm brick wall <glass window <metal
B . 12cm brick wall <24cm brick wall <metal <glass window
C . Glass window <12cm brick wall <24cm brick wall <metal
D . Glass window <12cm brick wall <metal <24cm brick wall

View Answer

Answer: C