A. is incorrect because it does not include a conjunction to connect the two sentences.
B. is incorrect because the sentence is not asking a question.
C. is incorrect because the sentence includes two sentences.
D. is correct because a complex sentence includes and independent clause(elizabeth likes to trek with her friends during the weekend) and a dependent clause( which is also a great way to socialize and stay fit)
The first thing you do is to find the lowest common multiple of 5 and 7.What you do on the bottom, you must do on the top 25/35 / 28/35. The answer is 25/28. Sara ran 25/28 of the total distance around the track.
