A team inherits a legacy system where every configuration change requires SSH access, manual file edits, and service restarts. Which modernization path BEST eliminates this toil at scale?
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A
Introduce a configuration management system (e.g., Ansible, Chef, Puppet) with a CI/CD pipeline for config changes
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B
Document each manual step more clearly in the runbook
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C
Assign one engineer as the dedicated 'config admin' to centralize the work
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D
Automate only the SSH login step using expect scripts