Answer:
The correct answer is letter "B": 80 Percent Rule.
Step-by-step explanation:
The Pareto Principle -also known as the 80-20 rule- states that 80% of the results are attributable to 20% of the causes. It is a guide that helps people to focus their efforts on the 20% that is important knowing the other 80% is of minor consequence. The Pareto Principle was developed by 20th-century business scholar Joseph Juran (1904-2008) who named the rule after Italian economist Vilfredo Pareto.