Select the correct option to test your answer: A The Earth is the densest of all the planets in our solar system B The predominant element in the composition of Earth is silicon C The Sun contains 75% of the mass of the solar system D The diameter of the Sun is 190 times that of the Earth Correct Answer: Option A (The Earth is the densest of all the planets in our solar system) Verified correct option for General Knowledge (GK) (Universe).