Which of the following is a symptom of major cognitive decline?

Difficulty in remembering familiar objects is indeed a symptom of major cognitive decline, as indicated in the DSM-5 criteria for neurocognitive disorders. Major cognitive decline encompasses a noticeable deterioration in cognitive functioning that interferes with independence in everyday activities. This can manifest in several ways, including memory deficits.

In particular, individuals with major cognitive decline may find it challenging to recall objects, names, or previously familiar concepts, leading to significant disruptions in their daily lives and the capability to perform tasks that were once routine. This symptom is closely linked to the general category of memory disturbances that define many neurocognitive conditions, such as Alzheimer's disease.

The other choices describe situations that are typically contrary to what someone experiencing major cognitive decline would exhibit. Improvement in problem-solving skills, enhanced communication ability, and increased social interactions are generally associated with cognitive stability or improvement, rather than decline. Thus, remembering familiar objects and experiencing difficulty in this area is a critical indicator of the cognitive impairment characteristic of major cognitive decline.