Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE? （）

A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing
B.Stack heights may be increased when using a solid bar lashing
C.Stack heights should be reduced when using a solid bar lashing
D.Solid bars should be used for lashing the first tier only，with wire lashings on the higher tier(s)