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OpenStudy (anonymous):

In many cases the encryption or safeguard on an e-card comes in the form of a __________ on the back. A. picture B. microchip C. magnetic strip D. three-digit code

OpenStudy (anonymous):

@DarrenMadx

OpenStudy (darrenmadx):

i think its D, but like i said before, im not really good at this

OpenStudy (anonymous):

haha yeah i remember

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