フリー問題

問題文

A path must find every member named b at any depth of the whole body of data. Which piece of path syntax does that?

選択肢

1. The path should carry the leading dollar in front of that member identifier.
2. The path should carry the positional subscript in front of that member identifier.
3. The path should carry the solitary asterisk in front of that member identifier.
4. The path should carry the doubled star in front of that member identifier.