The owner of a delivery firm argues: 'Our evening team gets through forty addresses an hour, so each rider on that team gets through forty addresses an hour.' Which of the following describes, in general terms, the move the owner makes?

Forty an hour is what the riders achieve between them, and the owner hands that figure down to every rider separately. The correct option names exactly that descent from whole to part, which fails because the team's total is the sum of unequal individual efforts. The first option describes the opposite ascent from part to whole, and the second and fourth describe errors of a quite different kind.