A tender committee argues: 'The award of the contract was fair, because every step laid down in the rule book was followed. And if a thing is fair, nobody has any ground to complain of it. So nobody has any ground to complain of the award.' Which of the following best describes the shift of meaning in this reasoning?

Following every step of a procedure earns the word 'fair' only in the procedural sense; a rule book can itself be written so as to favour one bidder. The second sentence needs the richer sense of an outcome nobody could justly object to, and the argument slides silently from the one to the other. The other options name words that keep a single sense across the three sentences.