A web application starts when a client sends a request to a server
The answer for the 1st blank is text.
Answer:
Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
I think there's a typo in the question, otherwise they probably meant a 'she', since the name is Maureen.
Also, the answer is Personal hygiene and grooming.