The arrangement of categories on the Pareto graph is such that B) The categories are arranged in order of their frequencies from the most frequent to the least frequent.
A pareto graph is such that the category which has the highest frequency will be shown first. The next highest is second and this goes on till the least.
The attached pareto graph does this by showing traffic as the first because it has the highest frequency.
In conclusion, option B is correct.
Find out more on pareto graphs at https://brainly.com/textbook-solutions/q-22-state-graph-pareto-chart-time-series-6#q-22-state-graph-pareto-chart-time-series-2.