In UML style E-R diagrams, which of the following would be considered a class attribute of the entity class CUSTOMER?
a. Customer Name (meaning, the first and last name of the customer)
b. Customer Address (meaning, the street, city, state, and zip code of the customer's residence
c. Customer Count (meaning, the count of the number of customers)
d. Customer Number (meaning, an assigned number to uniquely identify a customer)