A. Create a CloudWatch Logs metric filter that counts the number of times that the web server returns an HTTP 404 response.
B. Create a CloudWatch Logs subscription filter that counts the number of times that the web server returns an HTTP 404 response.
C. Create an AWS Lambda function that runs a CloudWatch Logs Insights query that counts the number of 404 codes in the log events during the past hour.
D. Create a script that runs a CloudWatch Logs Insights query that counts the number of 404 codes in the log events during the past hour.

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