quEstions 14 to 16 ArE BAsED on A rEport on ChilDhooD AnD CArEErs. you now hAvE 15 sEConDs to rEAD quEstions 14 to 16.

AFtEr yEArs oF hArD work,Dr. roE FounD thAt hEr originAl iDEA ______.A．lACkED suFFiCiEnt prooF.
B．turnED out to BE wrong in prACtiCE.
C．wAs CorrECt in prinCiplE.
D．BECAmE illogiCAl in its AppliCAtion.