What does mobility refer to in terms of physical ability?

Mobility, in terms of physical ability, specifically refers to the capacity to move about freely and easily. This includes various forms of movement such as walking, running, or changing positions. Effective mobility is crucial for independence and typically incorporates not just the ability to physically move but also factors like balance, coordination, and overall physical functionality.

The other options address different aspects of human capability. The first option relates to cognitive functions, the second focuses on interpersonal communication skills, and the fourth pertains to memory. While all these elements are important for overall human functioning, they do not pertain directly to physical movement, which is the essence of mobility. Thus, the correct understanding aligns with the concept of mobility solely as it relates to physical movement and activities.