What are factors that can influence how a judge makes decisions?

There are multiple factors that go into a judge's ruling, much of it is based out of legal findings, (admissible & useful) evidence, the judges ideology, political connection, and personal judgement - while judges do hold a lot of power their methods must be agreed upon at the local/state & government levels.

Explanation:

This can vary greatly depending on location; a NYC judge probably won't have the same decision-making process as a judge from Nebraska.

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the answer is b, encourage free trade