How did the division of labor affect the Sumerian civilization?

As division of labor increases productivity, it also means that it's cheaper to produce a good. In turn, this translates to cheaper products. If labor is divided between five people who specialise in their task, it becomes quicker and more efficient. In turn, the number of goods produced increases.

(hope this helps a bit)

whitch constitution would be inadequate as a basis for government today?

the answer would be a) it only allowed catholics to be in government.