Which statement best characterizes the risk profile of electronic cigarettes compared with conventional tobacco cigarettes?

• A. E-cigarettes are unregulated and have formaldehyde, trace metals, and particulate matter similar to conventional cigarettes.
• B. They have no harmful emissions and are completely safe.
• C. They are equally regulated and contain no formaldehyde.
• D. They reduce risk of cardiovascular disease compared to smoking.

Answer: (A)