It is A I just took the the test.
Answer:
a
Explanation:
Which best approximates the number of Americans that experience symptoms of a mental disorder each year?
more than 5 thousand
more than 50 million
more than 50 thousand
more than 500 thousand
B, a heart attack results when blood flow to the heart is suddenly disrupted.
Good speaking skills
Good listening skills
Good reading and writing skills
Displaying courtesy and respect
Answer: a) Retrospective cohort study
B) Relative risk C) 3.1
The cholesterol level measured in 1992 is a valid determinant of exposure status during the entire study period.