Given an items table with a nullable integer column named parent$\_$id and ten rows total, which is true about

the following query?

SELECT $*$

FROM items

WHERE parent$\_$id $7$ OR parent$\_$id $7$

This query may return less than ten rows

This query will return all ten rows in the table

If one of the values in parent$\_$id is $7,$ that row will be returned twice

None of the above