Parents should not necessarily raise their children in the ways experts recommend, even if some of those experts are themselves parents. After all, parents are the ones who directly experience which methods are successful in raising their own children. Which one of the following most closely conforms to the principle that the passage above illustrates? ['In deciding the best way to proceed, a climber familiar with a mountain might do well to ignore the advice of mountain climbing experts unfamiliar with that mountain.', 'Although music theory is intrinsically interesting and may be helpful to certain musicians, it does not distinguish good music from bad:that is a matter of taste and not of theory.', 'A typical farmer is less likely to know what types of soil are most productive than is someone with an advanced degree in agricultural science.', "Unlike society, one's own conscience speaks with a single voice; it is better to follow the advice of one's own conscience than the advice of society."]