Final answer:
Training at the race site helps runners get familiar with the course layout, aiding in strategy and pacing for improved race day performance.
Thus, the correct option is 1.
Step-by-step explanation:
One of the benefits of training at the race site is getting familiar with the course layout. This preparation allows runners to understand the terrain, which includes knowing the elevation changes, turns, and any potential challenging sections of the course. Familiarity with the course can help runners develop a race strategy, manage their pacing, and potentially reduce the element of surprise, leading to improved performance on race day.
Therefore the correct option is 1) Getting familiar with the course layout