Answer:
The formal operational stage
Explanation:
This is the last stage in piaget cognitive theory, it's at this stage that children starts using logic and increased perspective to deduct reason to any idea. At this point people get a better understanding of the world around them by applying applying abstract ideas and situation around.
The main perspective about this stage is the applicatoon of abstract ideas and situation to ones decision making.
Since white blood cells fight off infection, people tend to think that elevated levels are actually beneficial. This is not necessarily the case! A high white blood cell countisn't a specific disease, but it can indicate another problem, such as infection, stress, inflammation, trauma, allergy, or certain diseases.
The answer is chicken pox
