∼D
A) AC-invalid.
B) MP-valid.
C) DA-invalid.
D) MT-invalid.
E) HS-valid.

Name: ∼D A) AC-invalid. B) MP-valid. C) DA-invalid. D) MT-invalid. E) HS-valid.
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Question

∼D 
A) AC-invalid. 
B) MP-valid. 
C) DA-invalid. 
D) MT-invalid. 
E) HS-valid.

Quizplus · Accepted Answer

The argument has two premises: D implies A, and A implies B. The conclusion is that D implies B. This argument is invalid by the fallacy of denying the antecedent. The argument assumes that if A is true then B must be true which is not necessarily true. Therefore, choice C is the correct answer.