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An $\frac{\mathrm{I}}{\mathrm{O}}$ peripheral device shown in Figure $(b)$ below is to be interfaced to an $8085$ microprocessor. To select the $\frac{\mathrm{I}}{\mathrm{O}}$ device in the $\frac{\mathrm{I}}{\mathrm{O}}$ address range $\mathrm{D} 4 \mathrm{H}-\mathrm{D} 7 \mathrm{H}$, its chip-select $(\overline{C S})$ should be connected to the output of the decoder shown in Figure $(a)$ below

  1. output $7$
  2. output $5$
  3. output $2$
  4. output $0$
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