If you were studying the human geography of the United states, which of these questions would you be most likely to ask.

Here's 3 for you:

1. What regions attract certain types of people?

2. What are the charicteristics of poor and affluent neighborhoods?

3. What attitudes perpetuated by the colonizers still affect the American diaspora to this day?

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.