Qpass can manage micropayments for ________ systems
(a) pay-per-download.
(b) subscription-based.
(c) pay-per-click.
(d) all of the above.
Ans: (d)
Business
(a) pay-per-download.
(b) subscription-based.
(c) pay-per-click.
(d) all of the above.
Ans: (d)