Statement: Can pollution be controlled? Arguments: Yes. If everyone realizes…

In 'Statement and Argument' reasoning questions, an argument is judged 'strong' if it is directly relevant to the statement and carries real weight - not a vague assumption, an irrelevant remark, or a purely emotional appeal. This question type follows a fixed convention: when a statement admits two arguments that reach mutually exclusive conclusions on the same yes/no question (the statement cannot be simultaneously true and false), and each argument independently clears the relevance-and-weight bar on its own terms, the applicable classification is 'Either I or II is strong' - not 'Only I', 'Only II', or 'Neither'.

Argument I proposes a concrete mechanism - widespread awareness and cooperation - as the specific means of achieving control; this is a recognised, real-world lever for tackling environmental problems, not an idle wish, so it clears the relevance-and-weight bar on its own terms. Argument II grounds its 'beyond control' claim in named, measurable pressures - traffic volume, industrial output, and population growth - rather than a vague complaint, so it too clears the bar on its own terms. Because Argument I and Argument II give opposite answers to the same yes/no statement, and neither can be shown weak on its own terms, the applicable classification under this question type's convention is that either one, evaluated independently, is strong.

Confirm by testing what would sink each argument on its own terms: ruling out Argument I would require showing its proposed mechanism cannot work or is irrelevant to controlling pollution - not offered here. Ruling out Argument II would require showing the cited pressures are exaggerated or unrelated to controllability - also not offered here. With neither disqualified on its own terms, and the two conclusions being mutually exclusive, the fitting classification among the four given is that either argument, taken on its own, is strong.