The physical meaning of "c(HCOOH) = 1.2 mol/L" means that:

A) 1.2 mol HCOOH is contained in 1 mL of solution
B) 1.2 mol HCOOH is contained in 1 liter of solution
C) 1.2 mol HCOOH is contained in 100 mL of solvent
D) 1.2 mol HCOOH is contained in 1 kg of solvent