A business with an existing product inventory database wants to start storing customer and order data in a database as well.

Which of these is the simplest and most economical solution?

a$.)$

Creating additional tables and fields in the existing database for these new information types, if possible

b$.)$

Building a new database system and then importing the data from the existing product database into it

c$.)$

Finding out what third$-$party applications exist for what the business wants to do and using a third$-$party app if available

d$.)$

Building a new, separate database for the new data to be stored