Some common mediums in which speed of sound of sound?1. Air2. Steel3. Copper4. WaterWhat is the correct increasing order of the speed of sound ?

Some common mediums in which speed of sound of sound?1. Air2. Steel3.

1.	Some common mediums in which speed of sound of sound?1. Air2. Steel3. Copper4. WaterWhat is the correct increasing order of the speed of sound ?
A.	1 < 4 < 2 < 3
B.	4 < 1 < 2 < 3
C.	1 < 4 < 3 < 2
D.	4 < 1 < 3 < 2
Answer» D. 4 < 1 < 3 < 2