A write-heavy application uses Spanner in a multi-region configuration, and most write traffic now comes from one geographic area. What should the architect do to reduce write latency?

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B. Place the write-heavy compute near the default leader region or change the leader region to the dominant write region. Spanner handles writes in the default leader region, and the documentation recommends placing write-heavy compute within or close to that leader region or changing the leader region if traffic patterns change. Disabling replication is not a supported way to optimize Spanner write latency and would undermine the availability design.

A write-heavy application uses Spanner in a multi-region configuration, and most write traffic now comes from one geographic area. What should the architect do to reduce write latency?

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