Which of the following are risk factors for emphysema? Select the two correct answers. A. High-sugar diet B. High cholesterol C. Tobacco use D. Secondhand smoke

The two correct answers are:C. Tobacco useD. Secondhand smokeTobacco use is a significant risk factor for emphysema. Smoking damages the air sacs in the lungs, leading to the development of emphysema. Secondhand smoke also contains harmful chemicals that can contribute to the development of emphysema in non-smokers.