Which of the following is considered FALSE when it comes to storage tank firefighting?

A) Maintaining a foam blanket for a period of 30 to 60 minutes is often necessary.
B) Firefighting foams are the principal agents used to control these types of fires.
C) If a polar solvent is involved, topside application is required when using alcohol-resistant foam.
D) It is better to start an offensive attack and begin applying foam whenever it is available.

D