People accustomed to thinking that the human lifespan (i)____________ the outer bounds of animal longevity tend to dismiss tales of musket balls being found in the shells of living turtles. Samantha Romney, however, argues that while such stories may be (ii)____________, some turtles do indeed exhibit a phenomenon known as "negligible (iii)____________," showing no signs of aging even as they pass the two-century mark. A. belies B. apocryphal C. rejuvenation D. demarcates E. authentic F. superannuation G. antedates H. heresy I. senescence