(a) (i) can undergo elimination more rapidly due to the stronger leaving group.
(b) Only (i) can undergo elimination reaction because (ii) lacks any axial hydrogen at a β-carbon.

(a) (ii) can undergo elimination more rapidly due to the stronger leaving group.
(b) (ii) can undergo elimination reaction more rapidly because of the less steric hindrance.

(a) (ii) can undergo elimination more rapidly due to the stronger leaving group.
(b) Only (i) can undergo elimination reaction because (ii) lacks any axial hydrogen at a β-carbon.

(a) Both structures have the same reactivity towards an elimination reaction.
(b) Only (ii) can undergo elimination reaction because (i) lacks any equatorial hydrogen at a β-carbon.