Question: 10
(Choose 1 answer)
For the following relations and a Set operation:
Employee
Name | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
Customer
Name | City | Gender
Nguyen Trung Truc | HCM | Male
Tran Tuyet Nhi | HN | Female
and
Employee Customer
What is the result of the Union operation?
A. Name | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
B. Name | City | Gender
Nguyen Trung Truc | HCM | Male
Tran Tuyet Nhi | HN | Female
C. Name | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
Nguyen Trung Truc | HCM | Male
Tran Tuyet Nhi | HN|Female
D. Name | City | Gender
Nguyen Trung Truc | HCM | Male
Le Hong Son | HCM | Male
Tran Tuyet Nhi | HN | Female
