**Core Concept**
Congestive Cardiac Failure (CCF) is a condition where the heart is unable to pump enough blood to meet the body's needs, leading to fluid buildup in the lungs, liver, and peripheral tissues. This can be caused by various factors such as coronary artery disease, heart valve disorders, or cardiomyopathy.

**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of CCF, specifically the increased pressure in the pulmonary veins and capillaries, leading to fluid leakage into the alveoli. This results in pulmonary edema, characterized by accumulation of fluid in the lung tissue, causing shortness of breath and cough. The fluid buildup in the lungs can be attributed to the increased hydrostatic pressure due to the left ventricular failure.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is not relevant to CCF. While inflammation can be a component of various cardiovascular diseases, it is not a direct consequence of CCF.
**Option B:** This option is incorrect as it refers to a condition where the heart is unable to relax and fill properly between beats, which is not the primary issue in CCF.
**Option C:** This option is not accurate as it describes a condition where the heart rate is too fast, which is not directly related to the pathophysiology of CCF.

**Clinical Pearl / High-Yield Fact**
In patients with CCF, the presence of pulmonary edema is a critical clinical finding that requires immediate attention. The chest X-ray is often the first imaging test used to diagnose pulmonary edema, and it typically shows bilateral infiltrates in the lung fields.

**Correct Answer: C.**