Which pair of angles are vertical angles? ∠EKF and ∠JKI

∠FKG and ∠HKI

∠HKI and ∠JKI

∠EKF and ∠HKI
Lines E H, G J, and I F intersect at point K. Lines E H and G J are perpendicular. Line F I passes through angle E K G and angle H K J.