Final answer:
Light exhibits wave-particle duality, meaning it travels as both a wave and as particles called photons. In photosynthesis, pigments like chlorophyll absorb specific wavelengths of light, using the energy to fuel the process.
Step-by-step explanation:
The question relates to the nature of light. Light has a dual nature; it can be described both as a wave and as a particle. This is known as wave-particle duality. When considering light as a particle, we refer to these particles as photons. Photons are individual packets of energy, with each photon's energy being determined by its wavelength or frequency, following Planck's law. Hence, light can travel as a wave and a particle in discrete packets called photons (option C).
In the context of photosynthesis, light energy is captured by pigments in plants, such as chlorophyll. These pigments absorb specific wavelengths of visible light. Chlorophyll, for example, absorbs mainly blue and red wavelengths, reflecting green, which is why plants appear green. The absorbed energy is used to 'excite' electrons in the chlorophyll, which is fundamental to the process of photosynthesis, by which plants convert light energy into chemical energy.