By security of an information system we mean protecting

I. Data from accidental or intentional damage or loss

II. Programs from accidental or intentional corruption or loss

III. Programs and data from unauthorized disclosure

IV. Individual private data from disclosure

[A] (I) and (II)

[B] (I) and (III)

[C] (I), (II) and (III)

[D] (I), (II), (III) and (IV)

Answer & Explanation
Option: [D]