Answer:
The central idea of the play, considered politically, is the decay of republicanism in Rome and the rise of Caesarism. In the First Scene the populace give unconscious evidence of the growing spirit of monarchy. This they manifest when they cry out in the Third Act: Let him be Caesar.
Computers can save us hours of repetitious and dull "capitulation" but of course it should be noted that they do many other things as well that help us live our lives.
The answer would be C, a field guide. A field guide helps you identify plants and animals.