A team can have many coaches. A coach can work with only one team. A team may or may not have a coach. A coach must have a team. Based on these rules, which of the following is correct about placing the foreign key for the relationship?

Question $7$ options:

The primary key of COACH is placed as a foreign key in TEAM.

The primary key of TEAM is placed as a foreign key in COACH.

A bridge table containing both primary keys must be created.

There is not enough information provided in the problem to determine the correct foreign key placement.