A is corrent because parity checks, read-after-write checks, and duplicate circuitry are hardware controls which have been developed to detect and control mishandling of data within the computer. They detect electronic or mechanical problems in the movement and storage of data.
B is incorrect because these controls are not relevant to the detection and control of illogical programming commands.
C is incorrect because these controls are not relevant to the detection and control of lack of sufficient documentation.
D is incorrect because these controls are not relevant to the detection and control of illogical uses of hardware.
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