Which best explains how and why scientific knowledge is continually expanded and improved?

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Which best explains how and why scientific knowledge is continually expanded and improved?

The scientific process flows in one direction and finds only facts that support a scientist’s original idea.  The scientific process is cyclical so that new facts inspire questions that lead to new studies.  Once explanations are found to be true, they do not need to be questioned; then scientists can stop studying the topic.  Once facts are found through experiments and observations, other scientists do not need to repeat the experiments."

The scientific process is cyclical so that new facts inspire questions that lead to new studies.

Explanation:

As you already know, scientific knowledge is continuously expanded and improved. This is because the scientific process is cyclical, so that new facts inspire questions that lead to new studies.

These new studies guarantee the scientific and technological advancement necessary for us to evolve more and more, through new technologies that make our lives easier, new concepts that allow a better knowledge of our organism, new solutions for old problems and a better maintenance of our health.

the missing space is phylum