Question

what part of the scientific process becomes the conclusion, or the best explanation of the phenomenon or answer to the question?
theory
hypothesis
law
observation

Explanation:

A theory is a well - supported explanation of a phenomenon based on evidence from multiple sources and extensive research. A hypothesis is a proposed explanation made at the start of an investigation. A law describes a natural phenomenon but doesn't explain why it occurs. Observation is the first step in gathering data. The best explanation or conclusion in the scientific process is a theory.

Answer:

theory