In the sentence 'The officer's decisive leadership ensured the mission's success,' which word best replaces 'decisive' without changing the meaning?

• A. Firm
• B. Steadfast
• C. Resolute
• D. Unwavering

Answer: (C)

This question tests understanding of nuance in synonyms for leadership qualities. Decisive leadership conveys the ability to make firm, effective decisions that drive outcomes. Replacing decisive with resolute preserves that sense: resolute leadership emphasizes firm purpose and determination to achieve goals, which aligns with the idea that quick, clear decisions led to mission success.

Firm is close but emphasizes strength more than the decisiveness of making decisions. Steadfast and unwavering stress continual perseverance or loyalty, not the act of deciding and taking decisive action. So the best fit is resolute because it most directly captures the decisive, purpose-driven leadership described.