Question: Which statements are correct? a. A weak entity type can only have one attribute type. b. A weak entity type is always existence-dependent. c. An

Which statements are correct?

a. A weak entity type can only have one attribute type.

b. A weak entity type is always existence-dependent.

c. An existence-dependent entity type is always a weak entity type.

d. An existence-dependent entity type always participates in a 1:1 relationship type.

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