Which of the following best describes Open Buying on the Internet (OBI)?

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

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

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

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