What enzyme is responsible for cleaving large multimers of von Willebrand factor (VWF) and is implicated in the pathogenesis of TTP? Group of answer choices Methylenetetrahydrofolate reductase (MTHFR) Lactate dehydrogenase vWF A disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 (ADAMTS13)