Which of the Following Describes the Term Concentration

Which of the following describes the term concentration?

A) It is what you are doing now to answer this question.
B) It is the amount of solute in a given amount of solution.
C) It is the amount of solvent in a given amount of solution.
D) It is the given amount of solution in a given container.
E) It is the given amount of solvent per amount of solute.