What are the symptoms of hypoxia?

B outlines symptoms of hypoxia that directly affect cognitive function and general mental state. Hypoxia, which occurs when the body or a specific part of the body is deprived of adequate oxygen supply, can significantly impair a person's cognitive abilities. Symptoms such as poor judgment and memory loss highlight this cognitive impairment, as individuals may struggle to make rational decisions or remember critical information when their brain isn't receiving enough oxygen.

Headache is also a common symptom of hypoxia due to the increased pressure and activity in the brain as it attempts to compensate for low oxygen levels. Euphoria, while it might seem counterintuitive, can occur in certain stages of hypoxia where individuals feel a false sense of well-being, often leading to a dangerous underestimation of their condition. Recognizing these symptoms is crucial for pilots to take appropriate action to prevent further impairment.

The other options provide various symptoms associated with different conditions, but they may not encapsulate the specific effects of hypoxia as accurately as the second option does.