The answer for the above specified question is C, but I suspect it is incorrect.
Based on the documentation and search results:
consumer.request.timeout.ms: This parameter sets the maximum time to wait for a response from the Kafka broker for a single consumer request (like a poll request). This matches option B from the original question.
consumer.instance.timeout.ms: This is the parameter that controls the maximum idle time before a consumer instance is automatically closed by the REST Proxy. This is the setting the provided answer is actually describing.
Therefore, the correct answer to the original question is B, not C. The provided answer confuses consumer.request.timeout.ms with consumer.instance.timeout.ms.
Best regards.