How would this feature be integrated in Magento Open Source?

A Business Practitioner is building a site for an organization that sells food on the web. Their customer needs specific delivery times.

How would this feature be integrated in Magento Open Source?
A . The delivery time can be set in the Table Rates delivery option.
B. The delivery time can be set at the product level.
C. It requires custom development or a third-party extension.

Answer: C