Which of the following instances of UPDATE are CORRECT?

142.

UPDATE Employer p SET pay = 25000 WHERE NAME= 'Ram';

UPDATE Employer SET pay = 25000 WHERE NAME= Ram;

UPDATE Employer SET pay = '25000' WHERE NAME= 'Ram';

UPDATE Employer SET pay = 25000 WHERE NAME= 'Ram';

Syntax for update is:

UPDATE [tablename] SET [column-name=new value] WHERE [column-name=old value]