Which stage of Alzheimer's disease is characterized by forgetfulness of recent events and difficulty performing tasks?

The stage characterized by forgetfulness of recent events and difficulty performing tasks is indeed the moderate stage of Alzheimer's disease. At this level, individuals typically experience noticeable memory loss, particularly with recent information and events. They may struggle with daily activities and challenge with tasks that were once easy for them, such as managing finances or cooking.

During this stage, individuals can still engage in conversations and often remember personal history, but they might require assistance with more complex tasks and may become confused about their surroundings or what is happening around them. The cognitive decline becomes more apparent to both the individual and those around them, making this a critical stage for obtaining support and care.

The other stages mentioned are characterized by different levels of cognitive decline. For instance, very mild stage involves some forgetfulness that may be attributed to normal aging, while the mild stage shows more significant memory loss but still allows for a high degree of independence. The moderately severe stage may indicate a further decline where individuals frequently lose track of where they are or become disoriented, often needing considerable assistance with personal care.

Thus, option C accurately describes the stage associated with the described symptoms.