Let's think about the chef example that the columnist provided. This is one instance in which the intention was not a decisive factor in the moral judgment. The serious consequences overruled the chef's intentions. This shows that intention is sometimes not the only factor in determining guilt.
However, this example does not give us enough information to conclude that intentions are "rarely a decisive factor." We only have the single example. "Rarely" is too strong, so E is incorrect.
What we can conclude, is that intentions "sometimes" are not the decisive factor. "Sometimes" is accurate, because we are shown an example in which D would be true. The chef would be held guilty by many people, not because of intention, but because of the circumstances outside his/her control (allergy and death). One example is enough to say "sometimes," but not enough to say "rarely," which is why D is correct.
