Answer:
$2,400 in 2019 are deductible as alimony.
Step-by-step explanation:
Hillary get divorced in the year = 2016
She has to pay her ex-spouse $200 per month until her son reaches 18 years of age in 7 years.
His son will reach of the age of 18 = 2016 + 7 = 2023
She has to pay $200 till 2023 and $120 thereafter.
Her payments are deductible as alimony in 2019 would be = $200 × 12
= $2,400
$2,400 in 2019 are deductible as alimony.