Choice "B" is correct. Since the financial statements were adjusted without disclosure of the event in the footnotes, Wilson's report should be dated as of March 6, Year 2, the date on which sufficient appropriate audit evidence was obtained.
Choice "a" is incorrect. An April 10, Year 2 report date would be used only if the event were disclosed and Wilson wanted to extend the responsibility for all significant events through April 10, Year 2.
Choice "d" is incorrect. An April 24, Year 2 report date would be used only if the event were disclosed and Wilson wanted to extend the responsibility for all significant events through April 24, Year 2.
Choice "c" is incorrect. Dual dating would only be used if the event were disclosed in the notes to the financial statements.