orrect answer__________ is a specific domain in the relation which has entries of all tuples.

The correct answer is "Attribute."

In the context of relational databases, an attribute represents a specific piece of data that is stored in a relation (or table). Each attribute has a defined domain, which specifies the type of values that the attribute can hold (for example, integer, string, date, etc.). In a relational table, each column corresponds to an attribute, and the entries in that column for all rows (or tuples) are drawn from the attribute's domain. This concept is fundamental to understanding how data is structured and accessed in databases. An attribute allows for the categorization of data and helps maintain the integrity of the database by ensuring that only acceptable values are stored.