Which of the following is true in the context of a hypothesis?

All the given features hold, since a hypothesis is a tentative proposition whose validity stays unknown until tested and which should be generalizable.

Being tentative means it is a provisional conjecture, not an established fact.

Its validity remaining unknown until tested reflects that evidence alone can confirm or refute it.

Being generalizable lets a supported hypothesis extend beyond the immediate sample.

Choosing only one of these features would leave the description of a hypothesis incomplete.

A strong hypothesis is additionally clear, specific and consistent with existing theory.