Possible answer:

Day Sky Objects

The day sky is the part of the sky that is visible during daylight hours, when the sun is above the horizon. It is usually brighter and bluer than the night sky, and can be a source of inspiration, wonder, and danger. The day sky can contain various objects, some of which are visible to the naked eye or with basic equipment, and others that require advanced tools or techniques. The most common and prominent object in the day sky is:

Sun

The sun is a star that is located at the center of the solar system, around which the Earth and other planets orbit. It is a giant ball of hot plasma that emits light, heat, and other forms of radiation, some of which can be harmful to living organisms. The sun appears yellow or white to the human eye, depending on the atmospheric conditions and the time of day. It is the main source of energy and life on Earth, providing warmth, light, and photosynthesis for plants and animals. The sun also affects the climate, weather, and space environment of the Earth, by generating solar flares, coronal mass ejections, and other solar phenomena that can disrupt or enhance the magnetic field, the ionosphere, and the auroras.

Moon and Stars

The moon is a natural satellite of the Earth, which orbits around the Earth and reflects the sunlight to the Earth, causing different phases of illumination. The moon can be visible in the day sky, but only during certain conditions, such as a new moon or a crescent moon, when it is close to the sun in the sky. The moon appears white or gray to the human eye, and is smaller and less bright than the sun. The moon also affects the tides and the behavior of some animals, such as werewolves (according to some legends).

Stars are celestial objects that are much farther away from the Earth than the moon, and therefore appear as small points of light in the sky. Stars can be visible in the day sky, but only under very rare and unusual circumstances, such as a solar eclipse or a bright supernova. Stars come in different colors, sizes, and stages of evolution, and can be studied by astronomers using telescopes, spectroscopy, and other methods. Stars are essential for the formation and evolution of galaxies, and may contain planets and life forms similar to Earth.

None of the Above

If you choose option d) None of the above, you are correct in the sense that there may be other objects in the day sky that are not listed above, such as clouds, birds, airplanes, or kites. However, in terms of the typical and significant objects that are associated with the day sky, the correct answer is c) Sun.