Which is a common violation that nursing homes may receive during inspections?

B is the correct answer because inadequate staffing ratios directly impact the quality of care that residents receive in nursing homes. Regulatory standards require that nursing homes maintain specific staff-to-resident ratios to ensure that residents' needs—such as personal assistance, monitoring health conditions, and providing social interaction—are adequately met. When a facility is found to have insufficient staffing, it is often seen as a violation because it can lead to neglect of resident care, increased incidents of complaints, and potentially worse health outcomes for residents.

In contrast, while lack of recreational activities and insufficient leisure opportunities are important aspects of resident satisfaction and quality of life, they may not always fall under the most critical regulatory standards measured during inspections. Failure to maintain cleanliness, while obviously concerning and held to certain standards, generally involves more specific health codes rather than staffing ratios, which are a fundamental requirement for safe care delivery. Thus, inadequate staffing is a more common and serious violation that can lead to immediate implications for resident safety and well-being.