Gamma radiation is described as a high-energy photon that travels through the body and can be highly penetrative. Which option corresponds to this description?

• A. Beta Radiation
• B. Alpha Radiation
• C. Gamma Radiation Is a High-Energy Photon That Travels Through the Body and Can Be Highly Penetrative
• D. Neutron Radiation

Answer: (C)

Gamma radiation involves high-energy photons that travel through the body at the speed of light and can be highly penetrative. The description points to a type that is not a particle with mass but a photon, capable of passing through tissues and requiring dense shielding to reduce exposure. Alpha radiation is a heavy, charged nucleus that is stopped easily by skin or paper, and beta radiation consists of lighter charged particles with moderate penetration. Neutron radiation involves neutral particles with different interaction mechanisms and is not described as photons. So the description fits gamma radiation, the high-energy photon that travels through the body and is highly penetrating.