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Which Cosmos DB feature should an architect recommend to handle a sudden burst from 100 to 10,000 RPS without pre-provisioning fixed capacity?

AProvisioned reserved capacity with no autoscale
BManually doubling the throughput each morning by hand
CDisabling indexing
DAutoscale provisioned throughput (or serverless mode for spiky low-volume workloads)
Answer & Solution
Correct answer: D. Autoscale provisioned throughput (or serverless mode for spiky low-volume workloads)
Cosmos autoscale + serverless absorb bursty workloads (per AZ-305 §2 scalability). Manual changes don't fit bursts; reserved is for steady load; disabling indexing degrades queries.
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