durgesh79 wrote:

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.

AS A RETHOUGHT........

how can A be right ?

(A) Every circular argument is valid as long as its premises are true.....

IF ALL PREMISES ARE TRUE, THEN THE CONCLUSION IS TRUE AS THE CONCLUSION IS ONE OF THE PREMISES WHICH IS TRUE.........BUT this argument cannot be valid as the definition of valid argument says that

condition 1. at least one premise has to be false.....THIS CONDITION IS NOT MET HERE......

condition 2. Conclusion cant be false.......THIS CONDITION IS MET......

But because of " CONDITION 1 NOT BEING MET" this circular argument cant be valid !!!!!!!

Request EXPERTS TO EXPLAIN whats wrong with this line of thought........