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).

I found the complete question online. I will not post the whole excerpt here because it is too long. But I will add the answer choices I found:

Which details best support the theme that oppression can make alternatives seem impossible? Select TWO options:

A. "This was not what they had aimed at when they had set themselves years ago to work for the overthrow of the human race."

B. "If she herself had had any picture of the future, it had been of a society of animals set free from hunger and the whip."

C. ". . . they were far better off than they had been in the days of Jones, and that before all else it was needful to prevent the return of the human beings."

D. "She would remain faithful, work hard, carry out the orders that were given to her, and accept the leadership of Napoleon."

E. ". . . each working according to his capacity, the strong protecting the weak, as she had protected the lost brood of ducklings with her foreleg on the night of Major's speech."

The details are:

A. "This was not what they had aimed at when they had set themselves years ago to work for the overthrow of the human race."

D. "She would remain faithful, work hard, carry out the orders that were given to her, and accept the leadership of Napoleon."

Explanation:

"Animal Farm" is an allegorical novella published in 1945. Its author was George Orwell, a British novelist who lived from 1903 to 1950.

The passage we are analyzing here concerns Clover's thoughts. She is a mare that lives in animal farm and, along with the other animals, that has helped kick out their former human owner. The farm now belongs to the animals.

After their rebellion, the animals believed an equal society would be formed, one in which everyone would contribute to the welfare of everyone else. However, that is not what is happening. The pig Napoleon has become a dictator. He has privileges, and he bosses the other animals around as if they were his slaves. Things have gotten so bad that Napoleon has started killing animals who rebel against him or who disobey his orders.

Clover is utterly disappointed, but she has no choice. She is living under Napoleon's oppression. She sees no alternative but to keep on obeying, working hard, and trying her best, even though she is quite aware that things are not the way they were supposed to be. And the answer choices that best represent that are letters A and D.