The compound shown is one stereoisomer of 1,2-dibromocyclohexane. Consider configuration only (treat the ring as planar). Which statement is correct?

In the drawing the two bromines are on opposite faces of the ring, so this is trans-1,2-dibromocyclohexane. Its stereocentres are $(R,R)$ (or $(S,S)$) and it has no mirror plane, so it is chiral and exists as a pair of enantiomers. The cis isomer has both bromines on one face; the plane perpendicular to the ring through the midpoint of the C1-C2 bond is a mirror plane, so cis is meso. cis and trans are diastereomers, not enantiomers. Total stereoisomers: 3.