Answer: Option 'D' is correct.
Explanation:
Since we have given that
Amount of Kevin's gross income = $45942
Amount he contribute to his retirement plan = $3435
Amount he lost in business losses = $3393
Amount he incurred in business expenses = $1128
So, His adjusted gross income will be

Hence, his adjusted gross income is $37,986.
Hence, Option 'D' is correct.