Possible Vulnerabilities in the Data Chain Include Which Three

Possible vulnerabilities in the data chain include which three?

A) Company front doors, data lines between the store and the bank, and credit card readers
B) Credit Card readers, credit card signatures, and corporate servers
C) Credit card readers, data lines between the store and the bank, and corporate computer servers
D) Cash registers, company front door, and remote computers
E) None of the above