フリー問題

問題文

Why can a framework fail to read private members even though the package is available to it?

選択肢

1. Deep member entry unconditionally needs widened naming, while the plain form of the directive permits only compilation and normal invocations.
2. Deep member entry unconditionally needs reflective opening, while the plain form of the directive permits only instantiation and normal invocations.
3. Deep member entry unconditionally needs reflective opening, while the plain form of the directive permits only compilation and normal invocations.
4. Deep member entry unconditionally needs widened naming, while the plain form of the directive permits only instantiation and normal invocations.