Choose the correct description for the following sudoku solving technique: WXYZ-Wing

A) A four-cell pattern extending XYZ-Wing logic, where shared subsets among the pivot and pincers lead to elimination of a common candidate.

B) Three cells in a house that share exactly three candidates allow those candidates to be removed from the remaining cells of that house.

C) A three-cell formation where the pivot has three candidates and the outer cells share two of them. The third candidate is eliminated from any cell that sees all three.

D) If N digits appear as candidates in only N cells of a house, all other candidates in those cells can be removed.
