Each of the questions below contain three elements. These three elements may or may not hav some linkage. Each group of the elements may fit into one o the diagrams at (a), (b), (c), (d) and (e). You have to indica groups of elements in each of the questions fit into which o the diagrams given below. The number of the diagram is th answer.

Iron, Lead, Nitrogen

Answer

B

Explanation

Both .iron. and .lead. are .metal. but they are differen whereas .nitrogen. is a .gas.