The following can be done by a System Admin to a standard field.
The following can be done by a System Admin to a standard field.
A System Admin can change the field label, add help text, and add or edit values of a picklist for a standard field. However, standard fields cannot be deleted, thus option D and E are incorrect. Therefore, the correct answers are A, B, and C.
You can change the name of almost any object, field, or tab in Salesforce. For example, you can change the name label for the "Accounts" object and related "Accounts" tab to "Companies", and change the field "Account Name" to "Company Name." https://help.salesforce.com/articleView?id=customize_rename.htm&type=5
*** Standard fields are default fields built-in to Salesforce. They can not be deleted. On the other hand, several aspects of standard fields can be customized as follows: Edit, delete, or add values in picklist fields and set a default value.
B is the correct answer. You can do all A,B,C for only Custom fields.