A QR code is known as a(n)____ bar code because it stores information in both a vertical andhorizontal direction. The information it stores can correspond to a web address. a. universal     b. optical...

A QR code is known as a(n)____ bar code because it stores information in both a vertical andhorizontal direction. The information it stores can correspond to a web address.

a. universal     b. optical    d. multi-directional