How to create a relationship between tables in MySQL?

Question

MySQL

How to organize the relationship correctly, namely, what fields and with what parameters should be created in order to link the accounts , individual and cargo_carriers tables ?

accounts is the user account. When registering, the user will select using the checkbox what type of account he wants to create:
individual (individual) or cargo_carriers (carrier company).

Here is the diagram:

Answer 1

Add an account_id int field to the individual and cargo_carriers tables and create foreign keys to the accounts table