Which of the following stars are most likely to emit the most energy into space

The stars that are most likely to emit the most energy into space are the massive and highly luminous stars. These stars are typically classified as O-type and are among the hottest and brightest in the universe. They have high rates of nuclear fusion in their cores, resulting in a high energy output in the form of electromagnetic radiation across a wide range of wavelengths, including ultraviolet, visible, and even X-ray radiation.