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In a relational Schema, each tuple is divided into fields called

  1. relations
  2. domains
  3. queries
  4. none of these
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Option B

In a relational model, each attribute carries a domain of its own.

A domain refers to the set of unique values used to define that attribute and will act as a "model" set of values.

These values, being unique to that attribute are referred to as "atomic values".

Thus, in layman terms, a domain is a set of acceptable values that a column is allowed to store.

Simple examples:

(i) Let's suppose you have an attribute called "Marital_Status". The domain of this attribute has a set of possible unique (or atomic or distinct or elemental) values: 'MARRIED','SINGLE', 'DIVORCED';

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The attribute is a descriptive property that is possessed by each member of the entity set, and for each attribute, there is a set of permitted values called domains.

For example attribute gender has two possible values male or female.

Option B is correct
Answer:

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