Answer :
Jayne began recording the reservoir levels for the Benton Water Department on May 1. This direct information confirms that the correct answer is option b) May 1.
Jayne started recording reservoir levels for the Benton Water Department on May 1. The question provides this information directly: "she took measurements every day starting may 1." Therefore, the correct answer to when did Jayne start recording the levels is option b) May 1.
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