Suppose that \(A\subset B\) , so \(A\) is a proper subset of…

Suppose that \(A\subset B\) , so \(A\) is a proper subset of \(B\). What else can you for sure conclude must be true? Select all that apply (Hint: it could help to draw a picture). Note on notation: \(S\not\subseteq T\) means “S is not a subset of T”, i.e. \(\neg (S\subseteq T)\)