This table shows data collected by a runner.

A 3-column table with 6 rows. Column 1 is labeled Time (minutes) with entries 1, 2, 3, 4, 5, 6. Column 2 is labeled Distance (miles) with entries 0.19, 0.38, 0.57, 0.76, 0.95, 1.14. Column 3 is labeled Elevation (meters) with entries 12, 26, 67, 98, 124, 145.

Which statement about the scenario represented in the table is true?
The distance run is a nonlinear function because it does not have a constant rate of change.
The elevation is a nonlinear function because it does not have a constant rate of change.
Both the distance run and the elevation are nonlinear functions because they do not have constant rates of change.
Both the distance run and the elevation are linear functions.