What is the minimum legal age for a person to consent to medical treatment in South Carolina?

In South Carolina, the minimum legal age for a person to consent to medical treatment is 18 years old. This aligns with the general legal principle that individuals must reach the age of majority, which is recognized as 18, to be able to provide informed consent for medical procedures and treatments. Individuals under this age may have limited capacity to consent, often requiring a parent or legal guardian to provide consent on their behalf.

The other age options, while they may seem plausible within certain contexts, do not meet the legal criteria established in South Carolina for consenting to medical treatments. Therefore, 18 years old is the correct answer, reflecting the state's laws regarding medical consent.