Creating a database of all the plant species in the scientific record has proved to be no easy task. For centuries, botanists have been collecting and naming plants without realizing that many were in fact already named. And by using DNA analysis, botanists have shown that varieties of plants long thought to belong to the same species actually belong to different species. Of the following claims, which one can most justifiably be rejected on the basis of the statements above? ['Duplicates and omissions in the scientific record also occur in fields other than botany.', 'Botanists have no techniques for determining whether distinct plant species have been given distinct names.', "A person who consults the scientific record looking under only one of a plant's names may miss available information about that plant.", 'Most of the duplicates and omissions among plant names in the scientific record have yet to be cleared up.']