The force that attracts all matter to each other is gravity, i believe.
It would be C but its been a while since i took this class so sorry if im wrong but im 80% sure its C
<span>The scientific community ensure that all work done and shared is purely objective and based on solid facts and complete experimental procedure. Therefore, the scientific method is adopted to avoid bias in experiments. A bias would cause results to be skewed to fit the researchers' personal views, making the finding unreliable.</span>