Correct Answer: D
Explanation:
The subset symbol should be read as "is a subset of" So it's the first letter is a subset of the second letter. To be a subset, all of its elements must be contained in the other set.
The only one of these relationships that is true (where the entire set on the left is in the right set) is B⊆D
The elements of B, 4, 5, 6, and 8 all appear in set D.