Answer: Option (b) is the correct answer.
Step-by-step explanation:
It is true that sound travels faster in solids. This is because in solid substances, molecules are much closer to each other due to which transfer of energy is much faster.
On the other hand, molecules in a liquid and gas are farther apart from each other due to which there will be less transfer of energy. As a result, sound does not travel quickly through liquids and gases.
Thus, we can conclude that sound travels most quickly through solids because the molecules in solids are very close together.