The speed-time graph of an object is shown. Four statements about the object’s acceleration are given below. Which statement is correct?
- AThe acceleration in the first $5\,\text{s}$ is given by area P.
- BThe acceleration increases between W and X.
- CThe acceleration is negative between Y and Z.
- DThe deceleration between Y and Z is $(20 \div 25)\,\text{m s}^{-2}$.