**Core Concept**
Tetanus prophylaxis involves administering tetanus toxoid (TT) to individuals with clean wounds to prevent tetanus infection, especially in those with a history of tetanus vaccination. The decision to administer a booster dose or complete course of TT depends on the individual's vaccination history and wound characteristics.

**Why the Correct Answer is Right**
A booster dose of tetanus toxoid is recommended for individuals with a clean wound and a previous history of tetanus vaccination, as in this case. This is because the individual has already developed immunity to tetanus, and a booster dose provides additional protection against the disease. The administration of a single dose of tetanus toxoid is sufficient, as it will boost the individual's existing immunity without causing unnecessary exposure to the vaccine.

**Why Each Wrong Option is Incorrect**
**Option B:** Administering Human Tet Ig (tetanus immunoglobulin) with a single dose of tetanus toxoid is not necessary in this case, as the individual has already developed immunity to tetanus through previous vaccination.
**Option C:** A complete course of tetanus toxoid is not required for this individual, as they have already received a booster dose in the past and are at low risk of developing tetanus.
**Option D:** Not administering any immunization is not a viable option, as it leaves the individual at risk of developing tetanus.

**Clinical Pearl / High-Yield Fact**
When managing clean wounds in individuals with a history of tetanus vaccination, a single dose of tetanus toxoid is recommended as a booster dose to maintain immunity against tetanus. This approach reduces the risk of tetanus infection while minimizing unnecessary exposure to the vaccine.

**✓ Correct Answer: A. Wound care with single dose of tetanus toxoid**