Which of the following best describes Open Buying on the Internet?

A.
An internet standard that protects merchants by verifying identities of customers, and protects customers by shielding their credit card numbers from merchants

B.
A protocol that uses encryption in which one key is used to encrypt and decrypt the messages sent over a secure line

C.
An Internet standard designed for high-volume, low-dollar transactions

D.
The interorganizational exchange of documents in standardized electronic form directly between participating computers.

Explanation:
OBI (open buying on the internet) is designed for high volume and low cost. It sponsored by American Express. OBI uses EDI.