What are the use of distance -time graph ?

We can use distance time graph to see when the object reached a specific distance at a specific time

B. nuclear energy is contained in nuclear bonds is true

a is false because nuclear energy can definitely be controlled, as it is done when electricity is generated using nuclear energy in nuclear reactor plants.

c is also false as nuclear energy is MUCH more efficient than conventional forms of energy such as fossil fuels, solar energy, wind energy, tidal energy, etc.