DQuestion 1 0.5 pts When you use a BEFORE trigger to work with an UPDATE statement, you can use the keyword and a column name to refer to a value in the row before it is updated. Question 2 0.5 pts To turn the event scheduler on or off, you can use the statement. Question 3 0.5 pts MySQL only supports triggers. Question 4 0.5 pts To create a row-level trigger, you must code the clause. Question 5 0.5 pts Triggers can be used to enforce rules for data consistency that can't be enforced by