Answer:
the right answer to the question is schema
Explanation:
The database schema of a database is its structure described in a formal language supported by the database management system (DBMS). The term "schema" refers to the organization of data as a blueprint of how the database is constructed
The answer to this question is letter "A. cite a source". Citing a source is an important content of the presentation so as not to take the credit away from the real source of the ideas presented. Not citing the sources could be a ground for plagiarism.