The answer & explanation for this question is given in the attachment below.
Answer:Schema
Explanation: A schema is the group that contains objects of databases with views, index, triggers, tables etc features. The specific user can access schema who persist a certain username.The user is considered as the owner of the database and its element.
Schema is usually bound to have only single database.There are some schema that are already present in the system as the in-built schema .E.g.- sys, guest etc.
Angela should make sure the hamburger patty is disposed of and a new one prepared for the hamburger. She should reprimand Patty as what she did is wrong. Patty could well be fired for what she did. It is unsafe and unsanitary to give a customer food that has fallen on the floor. Angela should make sure this never happens again.