Correct Answer - Option 1 : 1 and 2 only
Assembly language directives:
Directives are instructions used by the assembler to help automate the assembly process and to improve program readability.
Assembly language directions define the machine code (by some bits).
It implements a symbolic representation of the machine codes and other constants needed to program a given CPU architecture.
It does not implement specific symbolic memory location.
∴ Only 3 is the function of assembly language directions.