The correct option is To distribute replicas of a workload evenly across failure domains and nodes to improve load distribution.

Topology spread constraints instruct the scheduler to balance pod replicas across topology domains such as nodes and zones to avoid concentration of pods. They use a label selector and a topology key and the scheduler evaluates the configured skew to decide where to place new pods so that load and failure risk are spread more evenly.

The option To require pods with matching labels to be co-located on the same node for performance reasons is incorrect because that describes co-location which is handled by pod affinity or node selection, not by spread constraints that aim to balance rather than force co-location.

The option To prevent selected pods from running on the same node in order to increase fault isolation is incorrect because strict exclusion is primarily the domain of pod anti-affinity. Topology spread constraints focus on even distribution across domains and are not mainly intended as a pod exclusion mechanism.

The option Taints and Tolerations is incorrect because taints and tolerations are used to repel or allow pods on particular nodes and to control node level placement. They do not express distribution requirements across topology domains.

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