This table shows data collected by a runner: which statement about the scenario represented in the table is true? Assume time is the independent variable.

a) the distance run is a nonlinear function because it does not have a constant rate of change.

b) the elevation is a nonlinear function because it does not have a constant rate of change.

c) both the distance run and the elevations are nonlinear functions because it does not have a constant rate of change.

d) both the distance run and the elevation are linear function because they have a constant rate of change.

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