Which statement best describes wave-particle duality as it applies to electrons? A. The electrons present in radio waves and microwaves act more like particles than waves. B. Electrons are particles that emit waves of radiation when they move from higher energy levels to lower energy levels. C. Electron clouds can be understood as clumps of particles held near one another by wave forces. D. Electrons can be modeled as waves in some situations and as particles in other situations.