Which of the following terms is defined as a point of view based on personal believes or preferences rather than on scientific evidence

It's a bias

Explanation:

If you're looking into a experiment with a wanting for the experiment to go how you visualized it or how you want it to, it's clearly a bias.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.

it foreshadows the theme of the paragraph and hints the topic that will be discussed in the paragraph!