The excuse is to admit that the activity itself is wrong, but the party denies that he should bear the responsibility. The defense is to admit that should be responsible for the activity, but the party denies that the activity is wrong. In the face of failed events, people use excuses to minimize their responsibilities, while  use defense  to try to redefine controversial actions so that they do not look too bad.
According to the above definition, which of the following is an defense?
Consumers in a country questioned the practice of adding carbon monoxide to the packaging to make the meat look ruddy and fresh, but the country's Food Administration said that this practice is generally safe