Unrealistic=lifelike
Pessimistic=hopeful
Conventional=imaginative
Old fashioned=modern
Intolerant=welcoming
Open-minded=unreceptive
I believe the correct answer from the choices listed above is option A. The word agility in the sentence means nimbleness. Nimble means <span> able to move quickly, easily, and lightly which is synonymous to being agile. Hope this answers the question.</span>