wrongThat's the wrong answer. Read the question again.
incorrectThe information on the website is incorrect.
erroneousformalNo one could explain how the erroneous information had got into the report.
inaccurateTheir estimation of the cost was wildly(= extremely)inaccurate.
fallaciousformalThe reports were fallacious and damaging.
untrueThe claims that he abandoned his child are simply untrue.
mistakenYou're mistaken if you believe we've discovered nothing of value.