Final answer:
Smoking is the strongest modifiable risk factor for Coronary Artery Disease and Abdominal Aortic Aneurysm according to the information provided, surpassing high blood pressure, obesity, and family history. Option 1) is correct.
Step-by-step explanation:
The strongest risk factor for Coronary Artery Disease (CAD) and Abdominal Aortic Aneurysm (AAA) among the options provided would be smoking. Studies have shown that smoking impacts cardiovascular health significantly, contributing to the development of fatty streaks in the vessels, which can lead to atherosclerosis and subsequently CAD and AAA.
Other modifiable risk factors include high blood pressure, obesity, diabetes, lack of exercise, poor diet, and excessive alcohol consumption. However, it's worth noting that a combination of these risk factors, along with non-modifiable factors such as age and family history, can also greatly influence the risk for these diseases.