To prevent a worker from entering time on a holiday, which two business objects can...

The correct answer is D. Time Day and Time Block .

In Workday Time Tracking, a validation that prevents or warns against time entry on a holiday must evaluate both the date context and the entered time record . The Time Day business object is used to determine day-level attributes, such as whether the date is a holiday. The Time Block business object is used to evaluate the actual time entry being submitted or edited. Together, these two objects give Workday the information it needs to create a critical validation that checks whether a worker is trying to enter time on a holiday.

This pairing is appropriate because the holiday condition itself exists at the day level , while the transaction being controlled is the time block . A critical validation can then be configured to trigger when a time block is entered on a day identified as a holiday.

The other options are less appropriate. Worker may be useful for worker-specific eligibility or attributes, but it does not provide the direct day-and-entry combination needed for this specific validation. Time Shift is related more to scheduled shift context and is not the primary business object for validating holiday entry against submitted time blocks.

Therefore, to create a critical validation that reminds or restricts workers from entering time on a holiday, the correct business objects are Time Day and Time Block .