What is the name of a nebula found close to bright stars that illuminate it?

The correct choice is a Bright Nebula, as it refers to a nebula that is illuminated by nearby hot stars. These stars emit intense radiation, which ionizes the gas in the nebula, causing it to glow and become visible. This phenomenon is typically observed in emission nebulae, where the gas becomes excited and emits light in various wavelengths, contributing to the colorful visuals we often associate with nebulae.

In contrast to the Bright Nebula, a Dark Nebula consists of dense material that blocks light from objects behind it, making them appear opaque and difficult to see. Emission Nebulae, while bright and often associated with regions of star formation, specifically refer to the type of nebula that is ionized by nearby stars. Planetary Nebulae are the remnants of dying stars that shed their outer layers and do not fall under the category of nebulae illuminated by neighboring bright stars in the same manner as a Bright Nebula would. Therefore, the term Bright Nebula encompasses the idea of illumination and visibility due to the influence of nearby stars.