Find the Average Density of a Red Giant Star with a Mass

Multiple Choice

Find the average density of a red giant star with a mass of 20 * 10³⁰ kg (approximately 10 solar masses) and a radius of 150 *10⁹ m (equal to the Earth's distance from the sun) .

A) 1.41*10^-4 kg/m³
B) 0.007 kg/m³
C) 1.41 kg/m³
D) 710 kg/m³
E) 1.41*10 ^{- 3} kg/m³