$(9$ points$)$ Review the following diagram for a conversion process.

Required:

$(1)$ For the Material issue class, how many foreign keys would be posted in the table?

$(2)$ How many linking tables are required to implement this class diagram?

$(3)$ How to name the relationship between Production Authorization and Products?

a$.$ one$-$to$-$many

b$.$ zero$-$to$-$one

c$.$ one$-$to$-$one

d$.$ zero$-$to$-$many