What Is Meant by a "Means-Tested" Social Service Program

What is meant by a "means-tested" social service program?

A) Recipients must prove that they need the service and that they cannot provide it for themselves
B) Recipients are qualified to use the program based on criteria other than whether or not they need the service and whether or not they can provide it themselves.
C) Recipients must be below the "mean" on average income to be eligible for the program.
D) Recipients are eligible on a first-come,first serve basis until the money runs out for the fiscal year.