For items 6-10. Refer to the problem below.

A survey was conducted among 50 people on the ice cream flavor they liked. It was found oit that 28 liked chocolate, 15 liked mango, and 20 liked strawberry. Furthermore, 8 liked chocolate and strawberry, and 7 liked chocolate and mango, and 4 liked all the 3 flavors.

6. How many people liked Chocolate only?
A. 28
B. 17
C. 8
D. 7

7. How many people liked mango only?
A. 15
B. 14
C. 7
D. 1

8. How many people liked strawberry only?
A. 20
B. 8
C. 5
D. 4

9.How many people liked all the three flavors?
A. 3
B. 4
C. 7
D. 9

10. How many people did not like the three flavors at all?
A. 3
B. 4
C. 7
D. 9​