Consider the following:
1. Aerosols
2. Foam agents
3. Fire retardants
4. Lubricants In the making of how many of the above are hydrofluorocarbons used

Question

Consider the following:
1. Aerosols
2. Foam agents
3. Fire retardants
4. Lubricants In the making of how many of the above are hydrofluorocarbons used?

Accepted Answer

(D) All four

Answer

(A) Only one

Answer

(B) Only two

Answer

(C) Only three