Final answer:
The detail from the text that best supports the answer to Part A is that the founders of the Constitution wanted to prevent a concentration of power in the hands of a few individuals.
Step-by-step explanation:
The detail from the text that best supports the answer to Part A is b. "Our founders didn't want a process where just a few people would have the power to quickly be able to make all the laws." (Paragraph 2)
This detail from the text explains that the founders of the Constitution wanted to prevent a concentration of power in the hands of a few individuals. They wanted a system with checks and balances, where legislation would be carefully considered and drafted by a representative assembly. This supports the answer to Part A because it shows that the legislative process was designed to be deliberate and inclusive, rather than quick and centralized.