The model was developed to allow designers to use a graphical tool to examine structures rather than describing them with text.

The correct answer to the following question will be "Entity relationship".

Explanation:

A relationship model for describes interlinked interests in a particular field of knowledge. A ER model consists of the types of entities that classify matters of interest and specify relationships around entities that may be instances.A relationship model of entity is a visual representation of entities and their relationships, usually used for data organization in databases or data systems in the form of a computer model or even as an entity interaction diagram.

Therefore, "Entity-relationship" is the right answer.

It really depends on your memory. if you have a great one then probably. i have done it before personally and it’s stuck with me since i was 6. but if you have a bad one then it might stay for a while but i wouldn’t say permanently