What type of sentence structure is shown in the sentence below? Jack raised his arms as he crossed the finish line at the Boston Marathon.
A) simple
B) compound
C) complex
D) compound-complex

C, complex

Explanation:

A complex sentence contains one independent clause (Jack raised his arms) and one or more dependent clauses (as he crossed the finish line at the Boston Marathon).

1.c

2.b

3.c

4.b

5.c

6.c

7.d

8.b

9.b

10.d

11.c

12.d

13.b

14.d

15.b

16.a

17.c

18.b

19.d

20.b

21.a

22.b

23.c

24.b

25.c

26.d

27.c

28.d

29.d

30.a

31.c

32.b

33.a

34.d

35.c

36.a

37.b

38.a

39.d

40.c

41.e

42.a

43.c

44.b

45.d

46.b

47.e

48.c

49.d

50.a

51.b

52.a

53.d

54.c