1.Based on the Crow's Foot ERD below: a)listthe entities for each entity,listthe attributes, the relationship cardinalities between the entities and the primary andforeignkeys.

For example, there is aone to many (1:M) relationship between the CUSTOMER and INVOICE entities. (What does the circle notation in2tell us?)

2. Assist me with understanding the business rules that are reflected in the following Crow's Foot ERD.

N.B.:You need to list 8 business rules. one rule for each cardinality symbol. I have labelled the symbols from 1 to Bin red. Label your business rules accordingly. The business rules should be stated in plain English. For example, here is the business rule (again. in plain English} corresponding to the symbol labelled 2: 2. Every customer can have many invoices