フリー問題

問題文

Revisiting the shorter route filters of a policy term can be asked for at the level of the whole device or inside one policy. Which of the pair of statements may be written at each of those levels, and how far does the one written inside a policy reach?

選択肢

1. The level of the whole device takes the statement that asks for the revisit and nothing beside it, because the device leaves the revisit off unless told otherwise, while a single policy takes either of the pair, and the one inside a policy reaches only its own term
2. Each of the two levels takes either of the pair of statements, since the device has no leaning of its own until something is written, while the one written inside a policy reaches every term of that policy
3. The level of the whole device takes the statement that asks for the revisit and nothing beside it, because the device leaves the revisit off unless told otherwise, while a single policy takes either of the pair, and the one written inside a policy reaches every term of that policy
4. Each of the two levels takes either of the pair of statements, since the device has no leaning of its own until something is written, while the one inside a policy reaches only its own term