In the following question, four words are given in bold. One of these words given in bold may be wrongly spelt or inappropriate in the context. Find out the word. If the words are correct, choose 'All are correct' as the answer.

Paradoxically, fallicious reasoning does (1)/  not always yield erroneous results: (2)/ even though your logic may be inoperative, (3)/ the answer you get may nevertheless be correct.(4)/ All are correct (5)