The command "ALTER TABLE guests' CHANGE name name varchar(20):" will Select one or more: a Produce an error b. Change the field name for the field name BC Change the field name for the field name and field size to variable character of 20 length Ed Change the first name of all users in the database e Affect only guests with first names The command 'SELECT * FROM guests WHERE telephone= '5261032 ORDER BY firstname' will give me (Select 4 answers) Select one or more: a only guests who are in the database ban Error Ec a list of all guests with telephone = '6261032 d a list of all guests with telephone= "6261032 ordered by firstname e. All of the relation's attributes where telephone= '6261032