Which of the following is NOT an example of bias? A. Pro high fructose corn syrup advertisements paid for by corn farmers.
B. Anti biofuel article written by a journalist working for an oil company.
C. Anti smoking article written by the National Health Association.
D. Pro ADHD medicine article written by pharmaceutical company.

C

Explanation: A,B and D are financially supported by a commercial entity that can benefit from stated views that promote their product (A, D) or make adverse claims against a competitor to their product (B).

Even if the information is factual, the perception of possible bias makes it unreliable without unbiased/disinterested validation.

For C, the National Heart Association, although not disinterested, is a reputable organisation whose concern is with public health, and in this case, the information can be taken as unbiased.

answer: b

coz red blood cells marrow and circulates the body for 120 days.