**Core Concept**
The **Body Mass Index (BMI)** is a widely used measurement to assess weight status, calculated as the individual's weight in kilograms divided by the square of their height in meters. BMI is a key indicator of health risks associated with underweight, overweight, and obesity. The formula for calculating BMI is **weight (kg) / height (m)^2**.

**Why the Correct Answer is Right**
To calculate the BMI of the male, we use the given weight (89 kg) and height (172 cm or 1.72 m). Plugging these values into the BMI formula gives us **89 kg / (1.72 m)^2**. Performing the calculation yields **89 / 2.9584**, which equals approximately **30.06**. This value corresponds to a specific BMI category.

**Why Each Wrong Option is Incorrect**
**Option A:** This option would be incorrect because it does not match the calculated BMI value.
**Option B:** Similarly, this option does not align with the calculated result.
**Option D:** This option is also incorrect as it does not reflect the correct calculation of BMI based on the provided weight and height.

**Clinical Pearl / High-Yield Fact**
Remember, a BMI of 18.5-24.9 is considered **normal weight**, while a BMI of 25-29.9 is classified as **overweight**, and a BMI of 30 or higher is categorized as **obese**. Recognizing these categories is crucial for assessing health risks and planning interventions.

**Correct Answer:** Correct Answer: C. 30.06