What would best describe light turbulence's effect on food service and mobility?

Light turbulence is characterized by slight, erratic changes in altitude with minimal impact on the overall flight stability. When it comes to food service during periods of light turbulence, it creates a situation where occupants may experience some difficulty walking and having food served, but it is not severe enough to completely halt these activities.

In light turbulence, the movement of the aircraft can cause unsteady conditions that may make navigating the aisle more challenging for flight attendants and passengers alike. It can also lead to difficulties in keeping food items stable during service, although service can continue with caution. This nuanced understanding illustrates that while occupants might feel some movement and have to exercise care when walking or trying to eat, operations are not brought to a standstill. Therefore, the description of occupants experiencing challenges aligns well with the nature of light turbulence.