Consider the Binary Data Packet Shown as a Spreadsheet with Columns

Consider the binary data packet shown as a spreadsheet with columns indicated by letters and rows by numbers.The last row contains the LRC and there is one error.The letter-number address of the error is___. $$\begin{array} { | c | c | c | c | c | c | } \hline & \text { A } & \text { B } & \text { C } & \text { D } & \text { E } \\\hline 1 & 1 & 1 & 0 & 0 & 1 \\\hline 2 & 0 & 1 & 0 & 1 & 1 \\\hline 3 & 0 & 0 & 1 & 0 & 1 \\\hline 4 & 1 & 1 & 1 & 1 & 1 \\\hline 5 & 1 & 0 & 0 & 1 & 1 \\\hline\end{array}$$