フリー問題

問題文

Two sources each send a line that seems to describe the same buyer. The team asks the hub to work out whether the two lines are really the same buyer. On what basis does that decision rest?

選択肢

1. Two incoming rows merge when the latest field agrees, not when the casual note does too.
2. Two incoming rows merge when the latest field agrees, not when the typed note does too.
3. Two incoming rows merge when the declared field agrees, not when the typed note does too.
4. Two incoming rows merge when the declared field agrees, not when the casual note does too.