Read the draft passage and answer the question. Paragraph 1: [1] A logistics course simulated deliveries from a regional warehouse to six stores. [2] Students changed the loading order after the first run. [3] Reducing the distance workers had to carry the heaviest containers. [4] The second run finished sooner even though the driving route stayed the same. Paragraph 2: [5] Teams compared labor time rather than total mileage. [6] Their final memo recommends testing the new order during a busier shift. Which revision of sentences [2] and [3] best repairs the fragment and shows the result of changing the loading order?