Which of the following is a run-on sentence? A. Galileo was an Italian physicist who made improvements to the telescope and discovered the four largest satellites of Jupiter. B. Sir Isaac Newton not only determined the three laws of motion and universal gravitation he also developed a theory of color. C. The binary code that forms the basis for all our modern computer systems has its basis in the looms that wove cloth during the early 1900s. D. Slave traders of the mid-1800s would come to the North and seize free African Americans, declaring them to be escaped slaves.