According to the Text,what Does Database Enhancement Refer To

According to the text,what does database enhancement refer to?

A) the acquisition of customer names,addresses,telephone numbers,and a complete transaction history with the company
B) the acquisition of demographic,lifestyle,or behavioural data.
C) the ability of a company to rapidly and economically scale up its database as it acquires larger numbers of customers.
D) the periodic upgrading of a firm's customer database capabilities.