Read the following paragraph: 'The discovery of penicillin revolutionized medicine, ushering in the age of antibiotics. Before penicillin, bacterial infections like pneumonia and sepsis were often fatal. After its widespread use, mortality rates from these diseases plummeted, dramatically extending human lifespans and transforming public health worldwide.' What organizational pattern does this paragraph primarily use?
✓ Correct Answer: Option C
The paragraph describes penicillin (the cause) and its immediate impact on bacterial infections and human lifespans (the effect). While there's a chronological element, the core focus is on the direct relationship between the discovery and its consequences.