Read the following passage and answer the question.
"Operator rounds must be completed every two hours during each shift. The purpose of rounds is to verify that equipment is operating within specified parameters and to identify developing problems early. Operators must record all readings in the log, including readings that appear normal."
Why must operators record readings that appear normal?
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A
To fill the required number of log entries per shift
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B
Because only abnormal readings can be identified against a normal baseline
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C
To create a complete record that makes developing trends visible
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D
To prove to supervisors that rounds were actually completed