Question : There is a hierarchical relationship between the _______.
Option 1: groups
Option 2: components
Option 3: Both 1 and 2
Option 4: All of the above
Correct Answer: Both 1 and 2
Solution : There is a hierarchical relationship between the groups and its components. In order to maintain the hierarchical relationships between a group and its subgroups, proper codification is required to ensure neatness and of classification. Hence the correct option is 3.