The values are 0.2 = 0.20, (0.2)² = 0.04, 1 ÷ 0.2 = 5, and 0.02 × 2 = 0.04. Thus options B and D are tied at the minimum value 0.04. The MCQ is defective because it contains two equal minimum values; the recorded answer B is one of the tied minimum values.