Let S={2,{4,6},8}S = \{2, \{4, 6\}, 8\}S={2,{4,6},8}. Which of the following statements is mathematically true?
4∈S4 \in S4∈S
{4,6}∈S\{4, 6\} \in S{4,6}∈S
{4,6}⊆S\{4, 6\} \subseteq S{4,6}⊆S
6∈S6 \in S6∈S