This is about understanding sets.
Option A is correct.
- Let us start with an example set of {a, b, c}
- According to subsets in mathematics, the number of subsets here will include any of the items in the primary set alone. or a combination of any of them.
Thus, the subsets would be;
{a}, {b}, {c}, {a,b}, {a, b, c}, {a, c}, {b,c}
- We are given the set; {-2,2}
Applying the same principle used in the example above, we can write the subsets as;
{2};{-2};{-2,2}
Thus, option A is the correct answer.
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