Question: K P G 1 0 red 2 NULL red 3 0 blue 4 9 red 5 NULL blue Table T has 5 rows of 3

K P G
1 0 red
2 NULL red
3 0 blue
4 9 red
5 NULL blue

Table T has 5 rows of 3 columns of data as shown above, where NULL means no data. The query below

SELECT AVG(distinct P) FROM T;

should return

a.)0

b.)3 c.)4.5

d.)NULL

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