Correct option is D
Sol. BMI (Body Mass Index) is a widely used screening tool to classify underweight, normal weight, overweight, and obesity in adults. It is calculated by dividing weight (kg) by the square of height (m²). A BMI ≥30 indicates obesity. It is a simple, non-invasive indicator recommended by WHO and used globally in clinical and community settings.
Explanation of each option:
· (a) Body mind index – Incorrect. This term is not medically recognized; it is often used in wellness contexts but not for obesity diagnosis.
· (b) Body metabolic index – Incorrect. This sounds similar but is not correct; BMI refers to mass, not metabolism.
· (c) Basal metabolic index – Incorrect. This confuses with Basal Metabolic Rate (BMR), which is different and measures energy expenditure.
· (d) Body mass index – Correct. It is the standard clinical tool for obesity classification in both adults and adolescents.