What Makes Gravity the Main Force Determining the Large?-Scale Structure

question 206

Multiple Choice

What makes gravity the main force determining the large?-scale structure of the universe?

• A) Gravity is the strongest of the four fundamental forces.
• B) Gravity is the only force that has an infinite range.
• C) While the electromagnetic force of a charged particle has an infinite range, it is usually screened (and limited) by the existence of charges of the opposite sign. Ordinary matter always exerts gravity that is attractive.
• D) The gravitational force, while short-ranged, is the only force that affects all particles: photons, quarks, charged particles, uncharged particles.