Correct Response: C. Preparation is an important key to the success of any lesson or activity. Time goals will not be appropriate for every activity (A), and students' development of social skills and sportsmanship will be promoted by opportunities to play, compete, and interact with a variety of teammates during a term (D). A teacher should have a range of strategies for managing interruptions during lessons, but those will not replace the value of effective preparation for the activity, and good preparation may even minimize interruptions (B).