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What medical condition does "Hypoglycemia" describe?

  1. Increased blood sugar levels

  2. Normal blood sugar levels

  3. Low blood sugar levels

  4. Absence of blood sugar

The correct answer is: Low blood sugar levels

Hypoglycemia describes a medical condition where the blood sugar levels are abnormally low. This is usually caused by excess insulin in the body or low intake of glucose. Option A, increased blood sugar levels, is incorrect because it describes hyperglycemia, a condition where the blood sugar levels are too high. Option B, normal blood sugar levels, is also incorrect because hypoglycemia is characterized by low blood sugar levels, not normal ones. Option D, absence of blood sugar, is incorrect as the body needs glucose to function and survive. Therefore, the correct answer is C, low blood sugar levels.