Identify the choice that is a run-on sentence. Rubber, which is inexpensive and durable, is used to make car tires.
O Aluminum is a lightweight metal steel is a very heavy metal.
Cars used to be made mostly of metal parts, but now plastic makes up about half of the construction of new cars.
Steve collects antique cars; he especially likes to restore classic muscle cars.

Robert was not waiting for her in the little parlor. he was nowhere at hand. the house was empty. but he had scrawled on a piece of paper that lay in the lamplight: "i love you. good-by—because i love you." what significant idea, presented throughout the novel, does robert's final departure and note highlight? edna is ultimately alone in her rebirth. edna needs to find solace in her children. edna will never be truly loved by anyone. edna should not have forsaken her family.