If \(x+iy=\begin{vmatrix}6i & -3i & 1 \\\ 4 & 3i & -1 \\\ 20 & 3 & i \end{vmatrix}\) then what is x - iy equal to?

• A. 3 + i
• B. 1 + 3i
• C. 3i
• D. 0