Microprocessor
While STC instruction executes,

 no flags will be affected.
 only carry flag will be affected.
 only carry and zero flags will be affected.
 all flags will be affected.

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Microprocessor
ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists of

 Accumulator, arithmetic, logic circuits and five flags
 Accumulator, temporary register, arithmetic and logic circuits
 Accumulator, temporary register, arithmetic, logic circuits and five flags
 Accumulator, arithmetic and logic circuits

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