Double click on a multiple choice's choice object in Preview window or in Timeline to open a Choice Properties Window.
Font settings
At the top of the window you will see the common text settings control such as Font, size, bold, italic, underline, alignment and color.
Alpha
To set the text transparency. 100% is a completely transparent.
Choice text
The text which will appear as a choice.
#PAGE# = To insert the page number
#QUESTION_NUMBER# = To insert the current quiz number. Eg: The first quiz will have QUESTION_NUMBER = 1, the second quiz will be 2, etc.
Set as a correct answer
To set this answer as a correct answer.
Note that you can have more than one choice as correct answers. The user needs to check all correct answers to be considered as correct.
Box Fill
The checkbox fill color.
Box Border
The checkbox border color.