Mismatched premises and conclusion. (B) sets a conditional rule (”no country that...”) and then restates the conditional as its conclusion. The stimulus establishes that there is something (spices) causing an effect (traditional level of hotness). Then the author claims that no particular variety of that cause is needed to achieve the effect, and concludes that the causes are interchangeable.

Mismatched premises and conclusion. (C) sets a conditional rule (”To receive a doctorate...”) and then tries to conclude the reverse of that rule as its conclusion (”Therefore, any student...”). The stimulus establishes that there is something causing an effect. Then the author claims that no particular variety of that cause is needed to achieve the effect, and concludes that the causes are interchangeable.

Mismatched premises and conclusion. (D) concludes a preference for one thing over another (concert vs. recorded), and supports this with a benefit of the preferred option. The stimulus establishes that there is something causing an effect. Then the author claims that no particular variety of that cause is needed to achieve the effect, and concludes that the causes are interchangeable.

Mismatched premises and conclusion. (E) sets two conditional rules (”Good cooks always...” and “every delicious meal...”) and concludes that negating the necessary of one rule (no high-quality ingredients) would negate its sufficient (not delicious). The stimulus establishes that there’s something causing an effect, claims that no particular variety of that cause is needed for the effect, and then concludes that the causes are interchangeable.