【单选题】
{{B}}nArrAtor{{/B}}
listEn to A pArt oF A lECturE in A ComputEr ClAss.
whAt DoEs thE spEAkEr FinD surprisingA.thE risE in thE numBEr oF soFtwArE inFECtions.
B.thE DEtErminAtion oF thosE who DEvElop virusEs.
C.thE FACt thAt pEoplE BlAmE thEir own ComputErs.
D.thE Amount oF lost DAtA CAusED By ComputEr virusEs.