In SQL, which of the following is NOT a valid trigger event?

Triggers in SQL are designed to automatically execute in response to specific events on a table, such as INSERT, UPDATE, or DELETE operations. However, SELECT is not a trigger event; it is a query operation used to retrieve data from a database. Triggers are typically used for enforcing business rules, auditing changes, or maintaining integrity. Option A (INSERT) is incorrect as it is a valid trigger event that executes when a new row is added to a table. Option B (UPDATE) is incorrect since it is a valid trigger event that executes when an existing row in a table is modified. Option C (DELETE) is also incorrect because it is a valid trigger event that executes when a row is removed from a table. Option E (ALL of the above) is incorrect as not all options are valid trigger events.