Final answer:
Light has wave-like and particle-like properties and can be described as both a particle and a wave.
Step-by-step explanation:
Light has both wave-like and particle-like properties, known as wave-particle duality. It can exhibit wave behavior in certain experiments and particle behavior in others. The particle of light is called a photon. Light can also be described as electromagnetic radiation that consists of photons with characteristic wavelengths or colors. Therefore, the correct answer is option 3) Both a particle and a wave.