Of the Following Is a Method Used to Detect Errors

of the following is a method used to detect errors when the two columns of the trial balance are NOT equal?

A) Compute the difference in the columns and search the trial balance for a transposition if the difference is evenly divisible by 9.
B) Compute the difference in the columns, divide the difference between total debits and total credits by 2 and search for the amount in the trial balance.
C) Compute the difference in the columns and search the trial balance for the missing amount.
D) All of the above are suggested methods for detecting errors.