Goldilocks Zone and Habitable Planets

The 'Goldilocks Zone' (also called the habitable zone) refers to the region around a star where conditions are 'just right' for liquid water to exist on a planet's surface—neither too hot nor too cold, like the porridge in Goldilocks. This concept is central to the search for Earth-like exoplanets that might harbor life. The term is not related to Earth's habitable zones, shale gas deposits, or meteorite searches. The zone depends on the star's luminosity and temperature. > Goldilocks Zone = habitable zone around stars where Earth-like planets might exist. Answer: (c).