Foam extinguishes a fire by____________.

A、Foam extinguishes a fire by____________.
B、Foam extinguishes a fire by____________.
C、Foam extinguishes a fire by____________.
D、Foam extinguishes a fire by____________.
E、Foam extinguishes a fire by____________.
F、Foam extinguishes a fire by____________.
G:Foam extinguishes a fire by____________.
H:Foam extinguishes a fire by____________.