Columnist: Taking a strong position on an issue makes one likely to misinterpret or ignore additional evidence that conflicts with one' s stand. But in order to understand an issue fully, it is essential to consider such evidence impartially. Thus, it is best not to take a strong position on an issue unless one has already considered all important evidence conflicting with that position. The columnist's reasoning most closely conforms to which one of the following principles? ['It is reasonable to take a strong position on an issue if one fully understands the issue and has considered the evidence regarding that issue impartially.', 'One should try to understand an issue fully if doing so will help one to avoid misinterpreting or ignoring evidence regarding that issue.', 'To ensure that one has impartially considered the evidence regarding an issue on which one has taken a strong position, one should avoid misinterpreting or ignoring evidence regarding that issue.', 'Anyone who does not understand an issue fully should avoid taking a strong position on it.']