I have no clue what you are talking about I am so sorry
Answer:
Explanation:
A relational database is designed to enforce the uniqueness of primary keys by allowing only one row with a given primary key value in a table. A foreign key is a column or a set of columns in a table whose values correspond to the values of the primary key in another table.
Psychology, because psychology is the study of how the mind works, and therefor what causes stress.
Answer: Where the guide lines?
Explanation: I’ll help but where the guidelines?
Answer:se muestran los documentos recientes, la de iTunes muestra links para abrir la iTunes Store o reproducir toda nuestra colección, etc
Explanation: