In 8085, which instructions are useful for writing and using subroutin

1.	In 8085, which instructions are useful for writing and using subroutines?
A.	CALL
B.	RET
C.	CALL and RET
D.	none of the above
Answer» D. none of the above

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In 8085, which instructions are useful for writing and using subroutines?

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