)when you classify data into groups and subgroups you are using a(n) order?
a. circular
b. hierarchical
c. linear
d. group

B)Hierarchical

Explanation: Hierarchical order classifies the distribution of the data into the groups and their subgroups .The division of these groups and subgroups appear in the structure of pyramid generally.

The classification done in the hierarchical order is based on the authority on each level e.g.-the level with high authority is situated at higher level and below it, followed by its subgroup components.So, the correct option is option(B).