Which statement from the passage shows author bias?

Responses
A However, overenthusiastic supporters should consider all sides of the issue before taking actions that are already putting America's economy in a precarious position.However, overenthusiastic supporters should consider all sides of the issue before taking actions that are already putting America's economy in a precarious position.
B Corn is also a common source of food for livestock.Corn is also a common source of food for livestock.
C Unfortunately, hardworking farmers and ranchers see very little profits from this increase in price.Unfortunately, hardworking farmers and ranchers see very little profits from this increase in price.
D State and federal government subsidy programs offer tax credits to gas stations for each gallon of ethanol they mix in with the gasoline they sell.

A However, overenthusiastic supporters should consider all sides of the issue before taking actions that are already putting America's economy in a precarious position.