To organize information into a common group or category is:

A: Cause/Effect
B: Classification
C: Definition

B: Classification

The correct answer is B: Classification.

To organize information into a common group or category is called classification. This process involves sorting or categorizing items or information based on their similar characteristics or properties.

For example, if you have a list of animals, you can classify them into different groups such as mammals, birds, reptiles, amphibians, or fish based on their shared characteristics.

To get the answer to this question, you can use your knowledge of different methods of organizing information or you can analyze the given options. In this case, option B, classification, is the most suitable choice as it directly refers to grouping or categorizing information.