[单选题]About electronic wallet, the correct description is（ ）.
Aelectronic wallets require consumers to enter their information at every site with which they want to do business
Ba client-side electronic wallet stores a customer's information on a remote server belonging to a particular merchant or wallet publisher
Ca server-side electronic wallet stores consumers' information on their computer
Dwhen consumers select items to purchase, they can then click their electronic wallet to order the items quickly
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