4. Identify the most simple SOP expression from the K-map shown.

  1. A' + B'
  2. C' + D'
  3. A' + AB'
  4. A'C' + A'C + AB'
  5. A'B + C









1 is CORRECT. Grouping the 1's in two groups of 8 yields the (most simple) SOP expression.

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