Increasing fuel efficiency can help us both financially and ethically
B. & everybody should know that since before 4th grade
The most obvious answer would have to be C. organic farming techniques.
The other answers have completely nothing to do with the passage.
I think the biased one would be the second excerpt
<em>She Prepares to Fight": Though past 50 years of age, she is tall and powerful and looks like she would be dangerous if aroused to a point of hatred.</em>
We can see that it's a biased excerpt because it appears to contain a prejudice that may have affected the writer's beliefs about Mrs. Hossack.
Even though it may not display the full situation