Final answer:
The most fitting replacement for 'fair' to describe the senator's unbiased treatment of contrasting opinions is 'objective'.
Step-by-step explanation:
The young senator had a reputation for seeking out contrasting opinions on matters of importance, and wanted to use a word to describe her fairness, even towards staff members with differing views. The best replacement for the underlined word 'fair' would be objective. This word specifically means being unbiased and impartial, which fits the context of the senator appreciating, encouraging, and considering everyone's input without letting personal biases interfere. The other options — equal, honest, and sensible — do not capture the essence of impartiality as effectively as 'objective' does.
The best replacement for the underlined word 'fair' in the sentence is objective. This word accurately reflects the senator's approach of considering all opinions and making decisions based on unbiased analysis. By seeking out contrasting opinions and being open to views that differ from her own, the senator demonstrates an objective mindset.