The poverty line is described by which of the following?

a.It is a dollar figure. When a household income is equal to or less than this figure, the household is not considered to be poor.

b.It is a dollar figure above which a household's income is considered to be in the poor category.

c.In 2010 in the United States, the poverty line for a family of four was an income of $22,314.

d.The poverty line is the same for all family sizes.

I think it's C, I just want to make sure.