C. Large numbers of stars are being born inside nebulas.
The Milky Way is a dynamic and evolving galaxy. One of the major ways in which it is changing is through the continuous formation of new stars. Nebulas, which are clouds of gas and dust in space, are the birthplaces of stars. As new stars form inside nebulas, they begin to shine and emit radiation, which can ionize the gas around them and cause it to glow. This creates beautiful and intricate structures, such as emission nebulae, which can be seen throughout the Milky Way. The ongoing process of star formation and the resulting evolution of the Milky Way is an active area of research in astronomy.