The Flip is a command tool that lets you create a
mirror-image version of a layer. Using Photoshop software<span>, it is very easy to do a mirror effect in the image, rotating
the half of the picture in the right and turn it into a mirror image of the
left half. You will usually see this kind of effect everywhere; it can be a
poster for a movie or the covers of an album. Flip is a command that is very
easy to do.</span>
I believe the correct answer is D. 4'33''.
It refers to his composition which lasts for four minutes and 33 seconds. It is rather controversial because there is no music at all - John Cage performed this before his confused audience who didn't know what was going on. Cage wanted to show that any sound in nature could be considered music, even if no actual instrumental sounds are made. So Cage just sat in front of his audience, without making a sound for 4 minutes and 33 seconds.
Yes, yellow-orange is an example of an intermediate color because an
intermediate colors are made by mixing equal amounts of primary and a secondary color. Hope that helps!