Final answer:
Mary Lou's total FICA (Social Security and Medicare) tax withheld in 2019 would be $5,202. Therefore, the correct option is D.
Step-by-step explanation:
To calculate Mary Lou's total FICA (Social Security and Medicare) tax withheld in 2019, we need to first calculate her total gross annual income by adding up the earnings from her three jobs:
$30,000 + $27,000 + $11,000 = $68,000
Then, we can calculate the Social Security deduction by multiplying the gross annual income by 6.2%:
$68,000 * 0.062 = $4,216
Finally, we can calculate the Medicare deduction by multiplying the gross annual income by 1.45%:
$68,000 * 0.0145 = $986
Therefore, Mary Lou's total FICA tax withheld in 2019 would be $4,216 + $986 = $5,202.