The nurse working with vulnerable populations in the local community understands that the individual who has the greatest risk for becoming a member of the vulnerable population is which of the following?

A single mother who is studying for a law degree at the local university.

A male diagnosed with a cardiac issue who recently moved in with his adult child.

A 50-year-old married female who has worked as a server in local restaurants for her entire adult life.

A single male who has a history that includes a learning disability and a parent diagnosed with type 2 diabetes.