The database table structure in the image shows an $$Employee table$,$Personal trainer table$$ and a $$Bike table$.$ Consider the following business rules:

As part of a tness campaign, an organisation is assigning each of its employees a personal trainer and a bike.

An employee can only have one personal trainer, but a trainer can have many employees $($i$.$e$.,$ clients that they train$).$

An employee can only have one bike. A type of bike can be assigned to many employees $($i$.$e$.,$ many sta may choose to have a Mountain bike$).$