In the views.py file, what are the lines that start with @ for? For example, @app.route('l'') @app.route('/home') def home(): They are sent to the template.html file They are simply reserving these URLs so other websites can't use them They tell Flask to run home() function when browser requests the URLs /F and "/home" They are there for the programmers so they know which URL they are writing the function for QUESTION 8 Primary Key: PhoneNumber; Foreign Key: Class ID Primary Key: Emplid; Foreign Key: ClassID Primary Key: StudentName; Foreign Key: Emplid Primary Key: ClassID; Foreign Key: Emplid QUESTION 9 Which SQL database engine did we use in class? PostgreSQL MSAccess SQL SQLite MySQL QUESTION 10 Which of the following modules and extensions have we not used in class? flask_WTF flask_SQLAlchemy flask flask SQL