If A→B, A→ C then which of the following is true?(a) A→BC(b) A→B(c) A→C(d) All of the mentionedThe question was posed to me in an interview for internship.My enquiry is from Functional-Dependency Theory in section Relational Database Design of RDBMS

If A→B, A→ C then which of the following is true?(a) A→BC(b) A�

1.	If A→B, A→ C then which of the following is true?(a) A→BC(b) A→B(c) A→C(d) All of the mentionedThe question was posed to me in an interview for internship.My enquiry is from Functional-Dependency Theory in section Relational Database Design of RDBMS
Answer» Correct option is (d) All of the mentioned Best EXPLANATION: Applying the union rule to the given question, we get, A→BC is TRUE. The other two OPTIONS are specified in the question itself.

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If A→B, A→ C then which of the following is true?(a) A→BC(b) A→B(c) A→C(d) All of the mentionedThe question was posed to me in an interview for internship.My enquiry is from Functional-Dependency Theory in section Relational Database Design of RDBMS

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