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Which of the following is known to be true?

${}_3^p=NP$ coNP

${}_3^p=NP$ coNP

$NP$coNPsube${}_3^p$

${}_3^p$subeNP$$coNP

Consider the following statements

S$1$: PSPACE $$ EXPSPACE.

S$2$: $P$CONL.

Only $S1$ is known to be true.

Only $S2$ is known to be true.

Both $S1$ and $S2$ are true.

Both $S1$ and $S2$ are false.