Concept:The word "modest" means humble and not overly proud of one’s abilities.
We need the word that is most opposite in meaning to "modest" and also fits the sentence logically.
Explanation:The sentence contrasts two brothers: one is rewarded, the other is punished.
The first brother is described as "modest," so the second brother should have the opposite quality.
"Conceited" means excessively proud of oneself or vain.
This is the direct opposite of being modest or humble.
The other options do not give this opposite meaning.
"Intelligent" means clever, which is not opposite to modesty.
"Handsome" describes appearance, not character.
"Wicked" means evil, which is not the opposite of modest.
Therefore, only "conceited" correctly fills the gap and contrasts with the underlined word.
Answer:C. conceited