I would say b. c. & d. because the question is asking how to stay safe before, not during.
I think the answer would be honors & activities. Because getting a prize or awards could be consider an honor. & Plus it doesn't make any sense with the other options.
Answer:
I would say A. Heart disease. Because Aids(HIV) can be transmitted through another persons saliva or bodily fluids, so you can take out all of the above option too.
Explanation:
True. The left side of the heart receives oxygenated blood from the pulmonary vein and pumps it into the aorta, while the right side of the heart receives deoxygenated blood from the vena cava and pumps it into the pulmonary vein.
