<Ul> <Li> A finite set A is a subset of (or is included in) B, denoted by A ⊆ B (\ displaystyle A \ subseteq B), </Li> </Ul> <Li> A finite set A is a subset of (or is included in) B, denoted by A ⊆ B (\ displaystyle A \ subseteq B), </Li> <Dd> if and only if the cardinality of their intersection is equal to the cardinality of A . </Dd> <Dl> <Dd> A ⊆ B ⇔ A ∩ B = A . (\ displaystyle A \ subseteq B \ Leftrightarrow A \ cap B = A .) </Dd> </Dl>

If set d is a subset of set e then which of the following is true