Answer: None of the above
Explanation:
The options are:
-none of the above
-working poor
-working class
-underclass
The working poor are those that are working but their income is below the poverty line.
The working class consists of the people whom are semi skilled, unskilled or industrial workers.
Underclass is made up of the poor and the unemployed.
Based on the information above, Bob doesn't fit into any of the above description.