An entity is a real-world object, whereas an attribute represents a property describing the related entity. An attribute can be any type of composite, derived, simple and multivalued. A simple attribute is the attribute which is not divisible. To illustrate, an id property for a book is simple attribute. A composite attribute symbolizes the collection of simple attributes. Thus, it can be divided into sub-attributes. To illustrate, name attribute is a composite attribute which is composed of simple attributes such as first name, middle name and last name. A multi-valued attribute contains more than one entry for a specific entity. To illustrate, birthdate of an author is single-valued because there is only one birthdate for the corresponding author whereas, phone number is a multi-valued attribute if there are more than one valid phone number for the related author. An attribute is derived attribute if it can be derived from other described attributes. To exemplify, age is a derived attribute for an author because it can be derived from birthdate attribute. Therefore, the correct option is E.