A student creates a segmented bar graph based on the frequency table using technology. The graph is titled "School Transportation Choices" and has "less than 2 miles" and "greater than or equal to 2 miles" on the x-axis, and percent on the y-axis.

Less than 2 miles:
- A bar segment labeled "walk" goes from 0 to 15 percent.
- "Car" goes from 15 to 25 percent.
- "Bus" goes from 25 to 50 percent.
- Total goes from 50 to 100 percent.

Greater than or equal to 2 miles:
- "Walk" goes from 0 to 20 percent.
- "Car" goes from 20 to 50 percent.
- "Bus" goes from 50 to 100 percent.

What error does the student make?

A. The student includes the row totals as a category to represent on the graph.
B. The student does not show the percentage of students who walk when the distance is greater than 2 miles.
C. The student forgets to switch rows and columns.
D. The student forgets to convert the values in the frequency table to percents.