Jansen's writing strikes many as (i)____________: for one who is capable of enduing even the most recondite topics with (ii)____________ tone, his prose becomes (iii)____________ in the informal correspondences he had with his contemporaries. A. pedantic B. an acerbic C. curiously stilted D. forbidding E. a cautious F. fully realized G. paradoxical H. a breezy I. somewhat unguarded