Final answer:
A careless person is most likely to accidentally carry drugs through airport security due to their inattention to detail(option c).
Step-by-step explanation:
The person most likely to accidentally have drugs on them while going through airport security would be a c)careless person.
A forgetful person might unintentionally have something they didn't mean to bring, but a careless person is more prone to not paying attention to the details of what they are carrying. In contrast, a meticulous individual and a detail-oriented individual would be very unlikely to make such a mistake, as they tend to double-check and organize their belongings carefully.