The DateSubmitted property must NOT accept a past date. How can you implement this requirement?

The requirement states that the DateSubmitted property must not accept a past date, and a validate rule is the appropriate mechanism to enforce this.

A validate rule can include logic to ensure that the user input for the DateSubmitted property is checked against the current system date and time. By doing this, the validate rule can trigger an error message if the user attempts to enter a date that is in the past, thereby preventing the submission of invalid data. Using a validate rule allows you to implement a clear business logic check that is specifically tailored to validating the date submitted against the current date.

While other options may offer solutions related to date selection, such as adding or customizing a calendar control, they do not inherently enforce the condition that prevents past dates from being accepted. Controls may allow users to select dates, but they wouldn't provide a method for validating the data against business rules in an automated way. Thus, the validate rule is the most effective option for this scenario.