To answer this question, you need to understand the concept of object privileges and views in a database.
A view is a virtual table that is based on the result of a query. It does not store any data itself but provides a way to access and manipulate data from one or more underlying tables. When granting privileges on a view, you can specify the types of operations that can be performed on the view.
Let's go through each option to understand which object privileges can be granted on a view:
Option A) DELETE, INSERT, SELECT - This option is incorrect because it does not include the UPDATE privilege. The correct option should include the UPDATE privilege.
Option B) DELETE, INSERT, SELECT, UPDATE - This option is correct because it includes all the necessary object privileges for performing delete, insert, select, and update operations on the view. Therefore, this option is the correct answer.
Option C) ALTER, DELETE, INSERT, SELECT - This option is incorrect because it includes the ALTER privilege, which is not applicable to views. The correct option should not include the ALTER privilege.
Option D) NONE - This option is incorrect because it suggests that no object privileges can be granted on a view, which is not true. You can grant object privileges on a view.
The correct answer is B) DELETE, INSERT, SELECT, UPDATE. This option is correct because it includes all the necessary object privileges for performing delete, insert, select, and update operations on the view.