フリー問題

問題文

A builders' merchant keeps a trade ledger of the suppliers it buys from. The developer wants to hang a saved set of matching rules on the matching step, and then looks at what the makings of a matching step turn into inside such a set. Which pairing is correct?

選択肢

1. A saved set of matching rules can be read by the matching step only when it was built within one. Inside such a set, the makings turn into a comparing step and an averaging step.
2. A saved set of matching rules can be read by the matching step only when it was built without it. Inside such a set, the makings turn into a comparing step and an averaging step.
3. A saved set of matching rules can be read by the matching step only when it was built within one. Inside such a set, the makings turn into a comparing step and an appending step.
4. A saved set of matching rules can be read by the matching step only when it was built without it. Inside such a set, the makings turn into a comparing step and an appending step.