People with low levels of education have high rates of death from ...

[Kikoku]

People with low levels of education have high rates of death from cardiovascular disease. What is the most valid explanation for this observation?
 
  A) Low educational levels cause CVD.
  B) High educational levels protect against CVD.
  C) Educational level is related to smoking, physical activity, diet, and obesity.
  D) Educational level is related to gender, which is related to amount of smoking, which is related to CVD.

Question 2

The advantages of physical activity to protect against heart disease
 
  A) appear in middle-aged individuals but not young adults.
  B) appear in older adults but not middle-aged or young adults.
  C) appear in young adults, but decrease over the lifespan.
  D) appear during childhood and continue over the lifespan.

[enass]

Answer to Question 1

C

Answer to Question 2

D

[Kikoku]

Thanks for the timely response, appreciate it

[softEldritch]

Wow, this really help