A ____ is a series of still frames projected at a rate fast enough to fool the human eye into perceiving continuous motion.

Answer the following statements true (T) or false (F)

1. Like a loop, a recursive function must have some method to control the number of times it repeats. 2. When a recursive function directly calls itself, this is known as direct recursion. 3. A problem can be solved with recursion if it can be broken down into successive smaller problems that are the same as the overall problem. 4. To solve a problem recursively, you must identify at least one case in which the problem can be solved without recursion.

? Craig is working to develop an XSLT application to display election results, using XML files with the structures shown in the accompanying figure. He has heard that you have experience developing applications, and comes to you for guidance. Craig would like to be able to use data from both documents in his application. You suggest he create variables that will allow him to pull the node sets from both files. Which of the following shows the correct syntax to create a variable namedcandidatesDocto reference the root node of the candidates.xml file?

A. ? B. ? C. ? D. ?