solved I don’t understand this Writing question and need help to

I don’t understand this Writing question and need help to study.

Define a tuple. How and where does a tuple fit into relational database theory? Why is this an important concept to understand?
How does an object-oriented database management system (OODMS) compare to a relational database management system (RDBMS)? What are the key features of an OODBMS, and how can a developer utilize them?
What is the difference between a Relation in an RDBMS and a Class in an OODBMS? Are they interchangeable, If so, explain how.
Contrast an object-relational database management system (ORDBMS) with an RDBMS? Describe the unique features and provide an example of how an OODBMS might be preferable to an RDBMS.
Contrast the attributes and functionality of an OODBMS versus an ORDBMS. Explain why RDBMS platforms are used more frequently in business than either of these object-oriented platforms.
From an entity relationship diagram (ERD) standpoint, would there be a significant difference between using an ORDMBS versus an RDBMS? Explain why or why not, and discuss specific instances in which differences are the deciding factor.