Final answer:
Ted is responsible for determining how much tax to withhold based on W-4 information and completing a W-4 form if there are any changes.
Step-by-step explanation:
As an employee at Wawa, Ted is responsible for determining how much tax to withhold based on W-4 information (Option A). The W-4 form is filled out by employees to indicate their tax withholding preferences. Ted will also need to complete a W-4 form (Option B) if there are any changes to his withholding information.