Careful is to cautious as boastful is to ____.

Given data

• Careful and cautious are near synonyms.
• Boastful has a close synonym as well.

Concept/Approach

Maintain the synonym relationship in the second pair.

Step-by-step reasoning
Careful ≈ cautiousBoastful ≈ ?Closest synonym among choices = arrogant

Verification/Alternative

Humble and timid are near opposites; silent is unrelated to boastfulness.

Common pitfalls

Picking a word that suggests absence of boasting rather than similarity.

Final Answer
arrogant