Which Universe term is correctly associated with important feature: “Sagittarius A* lies at its centre”, and also with “it belongs to the Local Group”?

Correct Answer: Option C — Milky Way. Milky Way is correct because it is Sagittarius A* lies at its centre. It is also associated with it belongs to the Local Group. Together, these two facts identify Milky Way precisely within Universe. Why the other options are incorrect: Option A — Andromeda Galaxy: Andromeda Galaxy is it is visible from Earth without a telescope under dark skies. It is also associated with it belongs to the Local Group, so these facts identify Andromeda Galaxy rather than Milky Way. Option B — Sun: Sun is the photosphere is its visible surface. It is also associated with sunlight reaches Earth in about 8 minutes 20 seconds, so these facts identify Sun rather than Milky Way. Option D — Sirius: Sirius is the brightest star in Earth's night sky. It is also associated with it is about 8.6 light-years from Earth, so these facts identify Sirius rather than Milky Way. Exam Takeaway: Link Milky Way with “Sagittarius A* lies at its centre” and “it belongs to the Local Group” for quick revision.