If you select the Horizontal Type Tool to make changes to one or more text layers, the options for the Horizontal Type Tool appear on the options bar, indicating that Photoshop is in ____ mode.

You can modify the backup retention period; valid values are 0 (for no backup retention) to a maximum of ___________ days.

A. 45 B. 35 C. 15 D. 5

A program's code tends to be simpler and easier to understand when it is __________.

Fill in the blank(s) with the appropriate word(s).