Many nurseries sell fruit trees that they label "miniature. " Not all nurseries, however, use this term in the same way. While some nurseries label any nectarine trees of the Stark Sweet Melody variety as "miniature, " for example, others do not. One thing that is clear is that if a variety of fruit tree is not suitable for growing in a tub or a pot, no tree of that variety can be correctly labeled "miniature. " Which one of the following can be properly inferred from the information above? ['Any nectarine tree of the Stark Sweet Melody variety that a nursery labels "miniature" is labeled incorrectly.', 'Unless the Stark Sweet Melody variety of nectarine tree is suitable for growing in a tub or a pot, some nurseries mislabel this variety of tree.', 'Some nectarine trees that are not labeled "miniature" are labeled incorrectly.', 'Some of the nurseries have correctly labeled nectarine trees of the Stark Sweet Melody variety only if the variety is unsuitable for growing in a tub or a pot.']