Question

For each of the following file extensions, select the correct file format from the drop-down menu.

.ibooks
✔ Multi-Touch iBook
.rtf
✔ Rich text format
.pdf
✔ Portable document format
.txt
✔ Plain text

Answer 1

All the options selected are correct:

.ibooks → Multi-Touch iBook

.rtf → Rich text format

.pdf → Portable document format

.txt → Plain text