## Core Concept
The management of Renal Cell Carcinoma (RCC) depends on the tumor size, location, and patient's overall health. For small RCCs, less than 4cm in size, the primary goal is to balance oncological efficacy with renal function preservation and minimize treatment-related morbidity.

## Why the Correct Answer is Right
The correct approach for managing a small RCC (<4cm) in an otherwise healthy 40-year-old man often involves **partial nephrectomy** or **active surveillance**, depending on various factors including the patient's age, comorbidities, and tumor characteristics. Partial nephrectomy is a preferred option when feasible, as it helps preserve renal function. Active surveillance is considered for patients with smaller tumors, especially if they have limited life expectancy or significant comorbidities. However, for a 40-year-old with a tumor less than 4cm, partial nephrectomy is often recommended to achieve a cure while preserving renal function. ## Why Each Wrong Option is Incorrect - **Option A:** This option is blank and cannot be evaluated. - **Option B:** This option is blank and cannot be evaluated. - **Option D:** This option is blank and cannot be evaluated. ## Clinical Pearl / High-Yield Fact A key point to remember is that for small renal masses (<4cm), **partial nephrectomy** is often the preferred treatment when possible, aiming to balance cancer control with preservation of renal function. Active surveillance may be considered in selected cases, especially in patients with significant comorbidities or limited life expectancy. ## Correct Answer: C.