Figure P shows an object which is made of three different materials. Figure Q shows its shadow on a screen. Study these figures and select the option that correctly identifies any two of these materials.
A1 - Tissue paper,-----2 - Cardboard
B2 - Cardboard,--------3 - Cellophane sheet
C1 - Cardboard,--------3 - Tracing paper
D2 - Frosted glass,-----3 - Cardboard
error in the question isn't it?