Final answer:
On standard object fields, various modifications can be made including changing the default text, adding help text, modifying picklist values, and changing labels.
Step-by-step explanation:
On standard object fields, several modifications can be made including:
- Default text: You can modify the default text that appears in a field.
- Help text: You can add help text to provide instructions or additional information about a field.
- Picklist values: Picklist values can be modified to add or remove options within a field.
- Labels: Labels can be modified to change the display name of a field.