Answer: The answer is (a) managing income.
Step-by-step explanation: Given that Justin and his wife have one child. He works 40 hours each week at the rate of $16 per hour, so the earning of Justin per month is
= $16 × 4.5 × 40 = $2880 {approx.}.
Also, his wife earns $350 each month.
Therefore, total cash inflow in the family is
Cash inflow = $2880+$350 = $3230.
They have a balance of $2000 as savings. Also, their cash outflow is $3000.
So, net cash left after cash outflow = $(3230-3000) = $230.
Since Justin has retirement contributions taken out of his salary at work and they have renter's, car and life insurance coverage, so based on all this information it will be good if they work on managing income.
Thus, the correct option is (a).