Right option is (d) Good manufacturing practice
The explanation: According to the rules of FDA good manufacturing practice regulations to which the companies must conform in their manufacturing. Products which will not be manufactured in accordance with good manufacturing practice regulations may be adulterated or misbranded and subject to seizure and in the worst cases, these companies can be told to shut down. All the medicines, cosmetics, etc. have different manufacturing guidance which each and every industry is intended to listen to.