Choose the correct pronoun in the following sentence.?
The performers were outstanding; we were pleased with ___________ entertainment choice.

What are the two ways the Track Matte Key effect can use pixels in one clip to define the opacity of pixels in another clip in a sequence?

What will be an ideal response?

The three main types of intellectual property for which legal protection is available are: copyrights, patents, and _______.

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