Additionally, there are many flexible implementation options of {HEAD ~ the challenge response application} that can be adjusted based on factors such as the location of the merchant or the location of {TAIL ~ the cardholder} 
Additionally , there are many flexible implementation options of { HEAD ~ the challenge response application } that can be adjusted based on factors such as the location of the merchant or the location of { TAIL ~ the cardholder }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL