Multiple choice

Consider the following E-R diagram

Which of the following is a correct attribute set for one of the tables for the correct answer to the above question?

  1. {M1, M2, M3, P1}

  2. {M1, P1, N1, N2}

  3. {M1, P1, N1}

  4. {M1, P1}

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A Correct answer
Explanation