In the first decade following the founding of the British Labour party, the number of people regularly voting for Labour increased fivefold. The number of committed Labour voters increased a further fivefold during the party' s second decade. Since the increase was thus the same in the first as in the second decade, the often-made claim that the Labour party gained more voters in the party' s second decade than in its first is clearly false. The reasoning in the argument is flawed because the argument
A: relies on statistical evidence that, strictly speaking, is irrelevant to establishing the conclusion drawn
B: fails to allow for the possibility that the policy positions advocated by the Labour party changed during the period in question
C: fails to specify dates necessary to evaluate the truth of the conclusion, even though the argument depends on distinguishing between two time periods
D: draws a conclusion that cannot be true if all the data advanced in its support are true
Choose A, B, C or D as your solution.
D