For the item number 7, refer to the illustrations below which show the particles of Solid,Liquid and Gas

solid liquid gas
7. Based on the illustrations, which of the following statements supports that sound generally travels faster through solids than through liquid and gas?
A. In solid, the sound travels faster because the particles are closer together.
B. In solid, the sound travels faster because the particles are warmer.
C. In solid, the sound travels faster because the particles are heavier.
D. In solid, the sound travels faster because the particles are larger.
8.Which of the following directly affects the speed of sound in a medium?
A. temperature
B. texture
C. shape
D. odor