Which rephrasing keeps the meaning of 'You won't succeed unless you try harder' while using 'until'?

The chosen rephrasing effectively maintains the original meaning of the statement about the necessity of effort for success while incorporating the word 'until.' The phrase 'You won’t succeed until you make an effort' emphasizes that success cannot be achieved without a prior action—making an effort—similar to the original statement's insistence on trying harder. This captures the imperative nature of putting in effort and aligns with the idea that action is a prerequisite for success.

In contrast, other options may convey a similar sentiment but do not align as closely with the original phrasing and meaning. While some, like the second choice, implicitly suggest the need for continued effort, they do not explicitly use 'until,' which is central to the requirement presented in the question. The last option, while hinting at conditionality, subtly shifts the focus from the necessity for increased effort to the potential consequence of not trying harder, thus diverging from the clearer cause-and-effect relationship established in the original statement.