The equation below explains the relationship between luminosity (L), radius (R), and temperature (T) for any star in generic units: L = 4π R² σ T⁴. In the equation above, π and σ are constants. What does the equation represent?
1) The equation represents the relationship between the luminosity and radius of a star.
2) The equation represents the relationship between the luminosity and temperature of a star.
3) The equation represents the relationship between the radius and temperature of a star.
4) The equation represents the relationship between the luminosity, radius, and temperature of a star.