Final answer:
Atenolol, a beta-blocker medication, may be mailed if legal requirements are met. Alcohol, arsenic, and lighter fluid are generally prohibited due to their hazardous nature. The correct answer is option: c. Atenolol
Step-by-step explanation:
Among the options provided, Atenolol may be mailed if it complies with all applicable federal and state laws, including those related to prescription medication. Atenolol is a beta-blocker used to treat cardiovascular conditions such as hypertension and is not prohibited for shipment. However, special care should be taken to ensure proper packaging and labeling according to postal regulations.
In contrast, alcohol, arsenic (a toxic substance), and lighter fluid (a flammable liquid) are generally restricted or prohibited items in mailing services due to their hazardous or flammable nature. It's always best to check with the specific carrier's regulations as these can vary.