Question

sound travels in the form of mechanical waves, because of this sound waves cannot travel through what? space solids water air

Explanation:

Mechanical waves (like sound) need a medium (matter) to travel. Space is a vacuum (no matter), so sound can't travel through it. Solids, water, and air are media (have matter) that sound can travel through (solids even faster than air/water).

Answer:

A. Space