The velocity of sound in air is affected by change in the 1. Atmospheric pressure2. Moisture content of air3. Temperature of air4. Composition of airChoose the correct answer

The velocity of sound in air is affected by change in the 1. Atmospher

1.	The velocity of sound in air is affected by change in the 1. Atmospheric pressure 2. Moisture content of air 3. Temperature of air 4. Composition of air Choose the correct answer
A.	1 and 2
B.	1, 3 and 4
C.	1, 2 and 3
D.	2, 3 and 4
Answer» E.