Motion — practice question

The graph illustrates the cyclist's motion over a ride lasting $14\,\text{s}$. What is the cyclist's average speed for the ride?

• A$2.0\,\text{m s}^{-1}$
• B$2.3\,\text{m s}^{-1}$
• C$2.4\,\text{m s}^{-1}$
• D$2.5\,\text{m s}^{-1}$