Whenever a masonry wall is being constructed, the limited access zone shall run the entire length of the wall and extend the height of the wall by how many feet?

The limited access zone for a masonry wall is designed to ensure safety during the construction process. By extending the limited access zone the entire length of the wall and up to 4 feet above the height of the wall, it provides a buffer area to protect workers and pedestrians from potential hazards such as falling materials or debris. This height is significant enough to cover typical scenarios where materials might fall during construction, making it a critical safety measure on any masonry wall project. Therefore, the correct answer reflects the requirement established in safety regulations to enhance safety for all individuals on the construction site.