A lesson its sponsors never intended is the one cardiologists now draw from the retinal-imaging trial: that warning people of heart disease years ahead can do more harm than good, though the trial was designed to measure the ______ that its software displays in flagging cardiac trouble long before any symptom appears.

Blank (i)
A. structural fragility
B. statistical prescience
C. anatomical fidelity
D. technical precocity
E. commercial allure