The black death. If you're talking about Europe.
The actual purpose of the Declaratory Act of 1766 was to save UK from embarrassment, and to abolish the Stamp Act and lessen the impact of Sugar Act without admitting that they UK was wrong to introduce them in the first place: the Declaratory Act was phrased only as to declare anew the right of the Crown over the colonies.
B for sure if not that then A
The location of The Wailing Wall currently is Jerusalem if I’m not wrong.