In Which of the Following Cases of Consumer Safety Violations

In which of the following cases of consumer safety violations will the U.S. Department of Agriculture be required to take action?

A) A new drug was released into the market without adequate testing, and this led to adverse side effects among users.
B) A brand of soft toys for infants was produced with low grade foam and fabrics that are harmful for children when ingested.
C) A batch of sausages and cold cuts from a particular vendor was found to have high levels of salmonella and other pathogenic organisms.
D) A fleet of cars released into the market by a famous company was found to have a defective braking system which could prove fatal for owners.