Final answer:
Shondra's large tax refund suggests that more money than necessary was withheld from her paychecks for taxes, which lead to her overpaying the government over the course of the year. Therefore, the correct answer is option A. She's having too much of her regular paycheck withheld.
Step-by-step explanation:
If Shondra received a large tax refund, it is most likely due to having too much of her regular paycheck withheld. This means that the amount of money taken out of her paycheck for taxes was more than what she actually owed to the government. So, when she filed her tax return, the government sent her a check for the difference because she had overpaid her taxes throughout the year.