**Core Concept**
The Body Mass Index (BMI) is a widely used measurement to categorize individuals into various weight categories based on their body mass and height. It is calculated as the individual's weight in kilograms divided by the square of their height in meters (kg/m^2). For adults, the World Health Organization (WHO) defines the following BMI categories: underweight (BMI < 18.5), normal weight (BMI = 18.5-24.9), overweight (BMI = 25-29.9), and obese (BMI ≥ 30). **Why the Correct Answer is Right** A BMI of 25-29.9 for an adult female indicates that she is overweight. This classification is based on the WHO's BMI categories, which take into account the individual's weight and height to determine their body mass status. The BMI calculation takes into account the individual's weight and height, providing a simple and effective way to assess weight status. **Why Each Wrong Option is Incorrect** **Option A:** This option is not provided, so we'll move on to the other options. **Option B:** This option is also not provided, so we'll move on to the next one. **Option C:** This option is not provided, so we'll move on to the next one. **Option D:** This option is not provided, so we'll move on to the next one. **Clinical Pearl / High-Yield Fact** To calculate BMI, you can use the following formula: BMI = weight (in kg) / height (in meters)². This formula provides a quick and easy way to determine an individual's weight category. **Correct Answer:** 25-29.9