Answer:
44.153 million , 4 government
B. The U.S. declared war on Japan after the attack on Pearl Harbor. While it was an important naval base, and that was the reason that the Japanese attacked it, in the grand scheme of things it didn't matter all that much, considering the U.S. at the time was focusing its naval efforts on the Atlantic rather than the Pacific, though it did have one eye open. However, when the Japanese attacked Pearl Harbor, that's when the Pacific got hot and war was declared.
tl;dr the answer is B
The correct answer to this open question is the following.
Unfortunately, you did not attach any text, article, context, or reference to know who the authors are and what they are specifically talking about.
However, trying to help you, we can comment on the following.
One of the most impressive things that some authors mention when they talk about Cahokia and led archaeologists to conclude that it was a major trading center, was the large mounds built in that location that could have served to store food or goods that were part of the things they traded.
Cahokia was an ancient Native American settlement located in the territory of what today is Illinois, approximately in 700AD. They were talented people capable of constructing those amazing and large mounds. Archeologists say that this place was the largest city north of México before the arrival of Christopher Columbus. They were known to be good traders that used the Mississippi River to navigate, transport people, and goods to other regions.