Answer:
$0
Explanation:
The deductions made as seen were in the year 2019.
If Derek elects to take standard deduction in filling federal income tax return, the amount of refund will not be taxable and not to be included in 2020 gross income
Hence, no tax benefit rule applies as the standard deduction was taken in 2019.
Amount of refund that will be included in 2020 gross income is thus $0