I know this might not help now but I think its D but I will let you know for sure in a minute or two
Answer:
i 99/100 think its the first one.
When it comes to English Abolition and women rights, the sentence " Well, children, where there is so much racket there must be something out of kilter", contains an idiom ''out of kilter'' which means out of balance or not properly adjusted, in a state of chaos. The synonym would be ''out of whack''. In this situation we can consider this sentence to be informal.
