The birth includes a baby (twins can be represented by two births), a mother, several nurses, and a can be shown to the doctor. Therefore, Babies, Mothers, Nurses and Doctors are sets. Consider the Birth relationship that unites these entity sets. Note that a multiple of the birth relation set will be of the following form (baby, mother, nurse, doctor). Each assumption given below is attached to the E/R diagram. should be reflected. (a) For each infant, there is only one mother. (b) For each combination of nurse, baby and doctor, there is one single mother. (c) There is only one doctor for all combinations of a baby and a mother. Create the E/R diagram with the requirements and constraints given above.