Marie Tharp's mapping of the ocean floor, which was based on a mass of previously unanalyzed measurements of ocean depth, did not depend on (i)____________ but on (ii)____________: she (iii)____________ the sea floor's contours by marrying the voluminous but incomplete data with her knowledge of geology. A. rote work B. serendipity C. inferred D. analytical prowess E. extrapolation F. detected G. empirical knowledge H. collaboration I. reconstituted