Step 1: Understanding Body Mass Index (BMI)
BMI is a metric used to classify individuals based on their weight relative to their height. It is computed using the formula:
\[\text{BMI} = \frac{\text{Weight (kg)}}{[\text{Height (m)}]^2}\]
Step 2: WHO classification of obesity
According to the World Health Organization (WHO), the BMI categories are as follows:
- Underweight: BMI < 18.5
- Normal weight: BMI 18.5–24.9
- Overweight (Pre-obese): BMI 25.0–29.9
- Obesity Grade I: BMI 30.0–34.9
- Obesity Grade II: BMI 35.0–39.9
- Obesity Grade III (Severe or Morbid Obesity): BMI >= 40.0
Step 3: Identifying Grade II Obesity
Grade II obesity falls within the BMI range of 35.0 to 39.9, which aligns with Option (C).
Step 4: Final Answer
Therefore, the correct answer is Option (C): 35.0–39.9.