フリー問題

問題文

During a connectivity problem the engineer runs two different simple tests from the array and has to explain to the customer what each of them establishes. One walks the path and the other asks for an answer. Which pair states what each test does?

選択肢

1. The engineer runs two simple tests, so the path test counts the crossed pathfinding and the answer test proves the simple polling in that investigation.
2. The engineer runs two simple tests, so the path test counts the crossed hopping and the answer test proves the simple polling in that investigation.
3. The engineer runs two simple tests, so the path test counts the crossed hopping and the answer test proves the simple delivery in that investigation.
4. The engineer runs two simple tests, so the path test counts the crossed pathfinding and the answer test proves the simple delivery in that investigation.