Passage Summary: An adviser gives rules for companies: if two options cost the same, go green; if you're already doing something dirty, only switch to a clean version if the law makes you or if it saves you a ton of money in the long run.

Reasoning: The adviser provides two conditional rules for decision-making regarding industrial processes and environmental impact based on cost and legal requirements.

Analysis: This is a 'follow the rules' question. You need to find a scenario that fits one of the two 'if' statements perfectly. If a scenario involves a company switching to a green process despite high costs, it must be because of a law or massive savings. If it involves choosing between two new things, they must be similar in price if the greener one is chosen. Be careful with the 'only if' in the second rule—it sets a strict requirement for when retooling is acceptable.