Answer the following statement(s) true (T) or false (F)

To check for hidden and personal data in the presentation or in its properties, use the Document ________ tool

Fill in the blank(s) with correct word

Qpass can manage micropayments for ________ systems.

(a) pay-per-download. (b) subscription-based. (c) pay-per-click. (d) all of the above.