It is the mark of a superior conductor that he or she has the authority to insist, even with a top orchestra, that rehearsal work must be intensified. This authority cannot simply be claimed; the conductor must earn it by winning the orchestra' s respect for the artistic interpretations he or she is currently pursuing. In taking the position outlined, the author presupposes which one of the following? ['Superior conductors are perfectionists who are never satisfied with any performance even by a top orchestra.', 'Superior conductors devise different interpretations of a composition for each orchestra with which they perform it.', 'Top orchestras are always ready to put in additional work on rehearsals if the conductor considers additional rehearsing necessary.', 'Top orchestras can appreciate the merits of an interpretation even before they have brought it to full realization.']