Which feature can you find on HP security labels?

A.
OK and Tick that move in opposite direction when the box is tilted front to back

B.
Invisible ink to add another layer of security

C.
RFID features to scan large batches at a time

D.
Quick Response (QR) code

Explanation:
Reference: http://h20423.www2.hp.com/program/fraud/in/en/fraud_identify.asp#a3 (examine the
label)