A class 2 lever is one where the load is situated between the effort (force applied) and the fulcrum (pivot point).
Among the examples provided, the salad tongs picking up a salad would represent a class 2 lever. In this case, the salad is the load, the effort is applied at the opposite end of the tongs, and the pivot point is where the tongs hinge.
Thus, the correct answer is: salad tongs picking up a salad.