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Choose the correct option from following:
When we create a relational database schema from an ER diagram, which among the following
is may or may not be correct

  1.    A table is required if the cardinality between the relationship is M:N.
     
  2.    A table is required if the given entity is Strong entity
  3.    A table is required if the given entity is Weak entity
  4.   A table is not required if there is full participation between a relation (without any attribute) and an entity

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