b.Oracle and MS SQL Server

AND

c. MySQL (if you’re only allowed 1 answer, don’t pick this since a lot of people don’t consider it a “real” database)

Now gimme my points.

I am not answering homework questions. Look it up hell you are on the internet.

Search Java

Search oracle

RJ

Relational Data Base Management System. Knowing that, you can conclude that b. and c. are the correct answers.
-MM