Answer:
A). There are differences among recovery programs, and no single program is right for everyone.
Step-by-step explanation:
The readers are most likely to infer that 'there are distinctions between the recovery programs offered by AA and LifeRing, and no single program can be right or helpful for everyone.' Each recovery program has its own motto which serves the needs of a specific group of people. Similarly, AA's motto is 'one day at a time' while LifeRing promotes idea of 'don't drink, no matter what.' John's preference for LifeRing over AA suggests the readers that different addicts require different programs to recover. It also makes them infer that 'no single program can serve the needs of everyone.' The other options are irrelevant to the central idea of the passage and therefore, option A is the correct answer.