I believe that the excerpt is about Harry, still an infant, lying in the front of the house and waiting to be picked up and adopted by his aunt and uncle.
A good paraphrase for this excerpt would be:
<span>Harry Potter, an infant, lies outside the house of his aunt and uncle and he is unaware that his
life has changed.</span>
D) Because of the rich natural resources which made the Sacramento Valley a ‘Garden of Eden,’ Native Americans established permanent villages there 8,000 years ago.
Option D is the best choice. While some of the other options correctly join the two ideas together, they do not achieve a coherent flow of ideas. The use of the conjunction "because" and the addition of "Native Americans" to eliminate passive voice help to create this flow. Now it is clear who established permanent villages and why this fact about the Sacramento Valley being a 'Garden of Eden' is relevant.
<span>and it helps in <u>building</u> an understanding ...
I guess this is it though the text is not that on of terrific English that one enjoys easily generally speaking
Best Luck!
Wise</span>