Microprocessor
PUSH B instruction in 8085 microprocessor causes

 registers B & C to be cleared
 the contents of registers B & C to be transferred in the stack and and the registers get cleared
 the contents of register B & C to be copied in the stack
 the contents of register B only to be copied in the stack

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Microprocessor
Assertion(A): Ready signal of microprocessor is used to detect whether a peripheral is ready for the data transfer or not. Reason(R): In the microprocessor during data transfer operations, the wait states are added by forcing the ready signal low.

 Both A & R are true and R is the correct explanation of A.
 A is true but R is false.
 Both A & R are true but R is not the correct explanation of A .
 A is false but R is true.

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