Which of the following best describes the primary focus of VFR?

The primary focus of Visual Flight Rules (VFR) is visual navigation. This means pilots operating under VFR rely heavily on visual references outside the aircraft and must maintain a certain level of visibility to navigate safely. The essence of VFR is to use landmarks, terrain features, and other visual cues, rather than instruments, to gauge position and navigate through the airspace. Pilots are expected to see and avoid obstacles and traffic while flying, which is a fundamental aspect of VFR operations.

While instrument navigation is essential for flying under Instrument Flight Rules (IFR), the focus of VFR distinctly leans toward visual methods. Nighttime regulations pertain to specific operational requirements when flying at night, and while they are important for safety, they do not capture the essence of VFR. Weather contingencies are concerned with responding to adverse weather conditions and ensuring safe operations, but they are not a primary focus of VFR either. The main tenet of VFR is the pilot's ability to navigate visually, which is central to its operational framework.