question_answer

Which one of the following options is correct if X, Y and Z represents transparent materials, translucent materials and opaque materials respectively?

A) X: air, water; Y: butter paper, tissue paper; Z; cardboard, wood

B) X: muddy water, ground-glass; Y: air and metals; Z: brick and stone

C) X: alcohol, groundnut oil; Y: ground-glass, butter paper; Z: air, brick

D) X: plastic, air; Y: muddy water, water; Z: book, brick

E) None of these