Conditional mood, but not sure
The news sources form of the speech might not have the speech entirely, meaning that the clips they do have could be easily taken out of context.
A personal reading of the transcript has the full speech, and it can be interpreted fully without anything being taken out of context.
I think it's B, but I can't guarantee it... Sorry
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.
