UGC NET General Q29

Question

Which of the following are correct ways of arguing?
(i) There can be no second husband without a second wife.
(ii) Anil is a friend of Bob, Bob is a friend of Raj, hence Anil is a friend of Raj.
(iii) A is equal to B, B is equal to C, hence A is equal to C.
(iv) If everyone is a liar, then we cannot prove it.
Choose the correct answer from the code given below:
Code:

Accepted Answer

(iii) and (iv)