Although existing information is spotty and interpretations (i)____________, the evidence points to (ii)____________ in human health and nutrition from Paleolithic to Mesolithic periods in the Old Worlds. The interpretation of some of this evidence is controversial, but there is no (iii)____________ evidence to suggest progress in nutrition or an improvement in health. A. uncertain B. an increase C. countering D. unambiguous E. a decline F. unanswerable G. reprehensible H. an eruption I. appreciable