You are using quantitative inspection characteristics during a production results recording.

For quantitative characteristics in results recording (transaction QE51N), control indicators in the MIC (transaction QS23) define how results are confirmed:

Summarized Recording (B): Records a single aggregated value (e.g., average) for the sample, a standard option for efficiency.

Classed Recording (C): Results are grouped into classes (e.g., ranges like 10-15 mm), common for statistical analysis.

Single Result (D): Each individual result is recorded separately, ideal for detailed tracking.

Mean Value and Standard Deviation (A): These are calculated outputs, not control indicators for recording type.

Mean Value (E): This is a result, not a control indicator for how data is entered.

Thus, "Summarized recording," "Classed recording," and "Single result" are the correct answers.References: SAP Help Portal - "Results Recording for Quantitative Characteristics"; SAP S/4HANA QM User Guide - "Control Indicators".