my pick is A.

What's the OA?

IMO D

I discarded 'A' because in valid argument all the premises cannot be true.

E? If negate E, it becomes some circular arguments are valid, and some valid arguments are circular... and for the words "some" it can be a reciprocal...

for circular arguments -> premise = false, and conclusion = false, therefore premis = conclusion
for valid arguments -> premise = not possible for all to be true, therefore COULD be false,.. if premise is false, and conclusion MUST befalse, then premise = conclusion...

so some valid argument can be circular...

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A valid argument is often defined as one in which it is not possible for all the premises to be true and the conclusion false. A circular argument is sometimes defined as one in which one of the premises is identical to the conclusion. From these definitions we can infer that...

A) Every circular argument is valid as long as its premises are true.
B) Every valid argument is circular.
C) No circular argument is valid.
D) Some circular arguments are valid, and some are not.
E) Some circular arguments are not valid, and some valid arguments are not circular.

durgesh, pls tell the OA

My pick is D. What is the OA?

Thanks Ian.

the OA is A. Below is the OE, which i dint understand.

"(A) Some people find this paradoxical, but it follows directly that circular arguments are valid. If the premises are true, and the conclusion is one if the premises, it must be true. Another trick here is the word 'valid'. Just because an argument is valid, does not mean it is true. Many people will make that false assumption and be thrown off on this question."

Don't have much explanation for it, D seems good