the recommendation made by the argument is this -
"press should report on the the most revealing positions on substantive issues the candidates have taken."Option A - Incorrect.
Whether chess is the most important analogy or not has no bearing on the conclusion that "press should report on the most revealing positions on substantive issues".
Option B - Correct.
Negate this.
If they do not take any positions on substantive policy issues, then there is no point to the recommendation that press should report on substantive issues.
This weakens the conclusion. Hence, correct.
Option C - Incorrect
Negate this.
"how the press reports politics does not determine substantive issues"
This has no bearing on the recommendation that press should report more on substantive issues.
Option D - Incorrect.
"The voters are not paying enough attention to the election to be able to make informed decisions." - this means that there is no point in publishing substantive policy issues.
Weakens the argument.
Option E - Incorrect.
then there is no point in reporting on substantive issues.
Even if there is a difference, the recommendation that the press should report on substantive issues still stands.