Which Universe term is correctly associated with location or association: “located in the constellation Taurus”, and also with “associated with a supernova observed in 1054 CE”?

Correct Answer: Option B — Crab Nebula. Crab Nebula is correct because it is located in the constellation Taurus. It is also associated with associated with a supernova observed in 1054 CE. Together, these two facts identify Crab Nebula precisely within Universe. Why the other options are incorrect: Option A — Black hole: Black hole is often formed from the collapse of a massive star. It is also associated with its boundary is called the event horizon, so these facts identify Black hole rather than Crab Nebula. Option C — Light-year: Light-year is used for distances between stars and galaxies. It is also associated with the distance light travels in one year, so these facts identify Light-year rather than Crab Nebula. Option D — Milky Way: Milky Way is the galaxy containing the Solar System. It is also associated with Sagittarius A* lies at its centre, so these facts identify Milky Way rather than Crab Nebula. Exam Takeaway: Link Crab Nebula with “located in the constellation Taurus” and “associated with a supernova observed in 1054 CE” for quick revision.