Passage Summary: Vanessa thinks every programmer must work with a partner so the code is easy to understand. Jo thinks the best programmers are much faster alone and should be allowed to work by themselves.

Reasoning: Vanessa requires all code to be written in pairs to ensure clarity, while Jo requires the most productive programmers to work alone to maximize their efficiency.

Analysis: This Principle Application question asks for the one scenario that violates at least one of the two rules. Vanessa's rule is a universal 'all,' meaning no one can ever work alone. Jo's rule is a 'must' for a specific group: the most productive programmers. The conflict is clear: if a 'most productive' programmer is assigned to a project, Vanessa says they need a partner, but Jo says they must be alone. To find the 'EXCEPT' answer, look for a situation where a top-tier programmer is paired up (violating Jo) or any programmer is left alone (violating Vanessa).