Which columns are included in the CityZipCode table, primary key, and foreign key?

Table

Primary key

Foreign key

CityID

CityArea

ZipCode

CityName

CityID $1-1(1)$

$$

CityArea M$-1(1)$

ZipCode M$-$M$(1)$

City

CityName M$-1(1)$

Each city may have multiple zip codes, so ZipCode is a plural attribute. Implement ZipCode in the CityZipCode table, separate from the City table.