I believe the answer is d
In To Kill a Mockingbird, the general vibe of the town as the children make their way to the courthouse is very lively. Many people have come from all over just to watch it, and the courthouse is most definitely packed.
Fairly sure that this phrase is representative of the ratifying of an amendment. A 2/3 vote in the houses and a 3/4 vote in the states are the vote amounts needed for an amendment to the Constitution to be ratified. This phrase means that atleast 2/3 of each house agreed to ratify.