Question: he CUSTOMER entity includes the attributes CUST _ LNAME, CUST _ FNAME, CUST _ PHONE, and CUST _ PHONE _ TYPE. The CUST _ PHONE
he CUSTOMER entity includes the attributes CUSTLNAME, CUSTFNAME, CUSTPHONE, and CUSTPHONETYPE. The CUSTPHONETYPE attribute stores tring "HOME, WORK, MOBILE, OTHER". Which term best describes CUSTPHONETYPE?
a Multivalued attribute
b Composite attribute
c Singlevalued attribute
d Simple attribute
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