How to implement a database?

Question

Database design

Guys, tell me how to implement a database connection?
I have four tables: customer, bank, loan and loan offer. I understand how to link the first three tables, but there were difficulties with the fourth one ...
Here is the task itself:

Answer 1

The main entity here is the "loan offer". It must be related to all other entities: bank (m2o), loan product (what is called "loan" in the task) (m2o), client (o2m) and payment schedule (m2o). Other connections, IMHO, are not required.