A slide ____ is a special animation effect used to progress from one slide to the next slide in a slide show.

?Identify the option that defines how positions are measured on the background in the following background property: background: color url(url) position / size repeat attachment origin clip;

A. ?size B. ?origin C. ?clip D. ?attachment

The ____________________ type is C++ 's method for allowing programmers to create their own simple data types.

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