Digital signals are characterized by which of the following statements?
$(i)$ They do not provide continuous values.
$(ii)$ They represent values in discrete steps.
$(iii)$ They can be represented by a binary system.
$(iv)$ They represent both binary and decimal systems.

  • A
    $(i)$ and $(ii)$
  • B
    $(i), (ii)$ and $(iii)$
  • C
    $(ii), (iii)$ and $(iv)$
  • D
    All of the above

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