【单选题】

This document shall specify, for a crack inspection, the minimum size crack expected to be discovered or, if no minimum is defined, a statement to this effect.

A、This document shall clearly states the minimum size crack you may discover in a crack inspection. If no minimum is defined, it shall have a statement that has the same effect.
B、This document shall specify the minimum allowed crack size expected to be discovered for a crack inspection or, if no minimum is defined, an equally valid standarD.
C、The minimum crack size you are going to discover during a crack inspection shall be included in this document. However, if you could not set forth a standard, a statement shall take placE.