What is the maximum distance that enemy observers can see under favorable conditions in open woods?

The correct answer is based on the understanding of how terrain affects visibility, particularly in wooded areas. Under favorable conditions, such as clear weather and good lighting, the maximum distance that enemy observers can typically see in open woods is approximately 100 yards.

In such environments, the density and layout of trees, underbrush, and foliage obstruct visibility. Open woods may allow for some line of sight, but various natural elements significantly limit it. This is why 100 yards is often considered the maximum effective observation distance rather than farther distances, which are deemed less realistic in terms of what an enemy observer can effectively detect without being hindered by the terrain.

Longer distances, such as 150, 200, or 250 yards, may seem plausible in open fields or clearings, but in the context of wooded areas, the presence of vegetation substantially obstructs the view. Hence, 100 yards is a reasonable estimate for enemy observation capabilities under the stated conditions.