To calculate the speed of the object, you can use the formula for speed, which is:
\[ \text{Speed} = \frac{\text{Distance}}{\text{Time}} \]
In this case, the object travels 10 centimeters in 2 seconds.
So:
\[ \text{Speed} = \frac{10 , \text{cm}}{2 , \text{sec}} = 5 , \text{cm/sec} \]
It looks like none of the provided responses match the calculated speed. However, based on the calculation, the speed is 5 cm/sec. If you need to choose from the given options, you might want to double-check the question or the options provided.