A would be the correct answer because but has a comma has it before it.
It is a saying that children use to make a promise. They will draw an X<span> over their heart with their finger and say </span> "Cross my heart, hope to die."<span> They may also add </span>"stick a needle in my eye."<span> to make the promise stronger. This shows that they are extremely serious about it.</span>
The correct option is A. Nimbleness
Nimbleness; noun - being nimble, quick
Agility; noun - being able to move quickly
Hope this helps you
Brainliest would be appreciated
-AaronWiseIsBae