Answer:
D. We must be free
Explanation:
Out of all the other answer choices, this is the only one that I believe to make the most sense. Thomas Jefferson intentionally repeats this statement, in order to strengthen his argument, and to let his point come across to the audience.
The correct answer is C. complex.
A complex sentence contains one independent clause and at least one dependent clause. Here, the independent clause is <em>Galileo, the first astronomer to use a telescope, confirmed the theory </em>and the dependent clause is <em>that the earth and planets circle the sun.
</em>A is incorrect because a simple sentence contains only one independent clause; B is incorrect because a compound sentence contains at least two independent clauses; D is incorrect because a compound-complex sentence contains one independent clause and at least two dependent ones.
I'm assuming you meant to type "the way our person views the world" and that is called first person.
<span>Speculation the others don't fit.</span>