Answer:
A. True
Step-by-step explanation:
We are talking about motion of solid, liquid and gas particles.
Now, for gas particles, due to the fact that it's particles are far apart from one another, it usually vibrates and thus moves freely at speeds that are higher than those of liquids of solids. For liquids, their particles are not as far apart as those of gases and so they vibrate, move about, and then slide past each other while solids are the most densely packed and so they vibrate but do not move from one place to the other like gases and liquids.
Thus, we can see that particles of liquid are more closely packed than gases and as such don't have same movement speed.