Given the Prisoner's Dilemma, which state of affairs is best described as the social contract

two people realizing that the rational thing to do is to agree together on what to do

$?$

$$

Prisoner

$1$

: Remain Silent

Prisoner

$2$

: Remain Silent

$$

Prisoner

$1$

: Confess

Prisoner

$2$

: Remain Silent

$$

Prisoner

$1$

: Confess

Prisoner

$2$

: Confess

$$

Prisoner

$1$

: Remain Silent

Prisoner

$2$

: Confess