B) to assure himself of its truth
The options given have you take a closer look at the words it's and himself. Option C changes "himself" to "hisself". "Hisself" is never correct. This means we have to decide if the correct answer is "its" or "it's". "Its", without an apostrophe, is the possessive form showing ownership. "It's", with an apostrophe, is a contraction meaning "it is". Let's plug them into the sentence "of it is truth" does not make any sense. Can "it" own truth? Yes, so "its" is the correct answer.
Answer:
D. uncivilized
Explanation:
Since no word is italicized, I'll explain the word "barbarous", it being the only word that could be troublesome. The word comes from Greek "barbaros" which was the term for people not speaking Greek.
Romans later took the word and in Latin it meant "the one who comes from outside of Roman Empire".
Basically, the term meant "foreigner". But, since these foreigners came from territories and tribes that were on a less cultural and civilizational level then Romans, this term soon denoted someone who is savage, uncivilized, brutal.
verb would be the answer i believe