Which of the Following Statements Is True

Which of the following statements is true?

A) Internal auditors, rather than external auditors, can conduct evaluations of effectiveness of Enterprise Risk Management processes.
B) Re-adding the total of a batch of invoices and comparing the total with the first total you calculated is an example of an independent check.
C) Requiring two signatures on checks over $20,000 is an example of segregation of duties.
D) Although forensic specialists utilize computers, only people can accurately identify fraud.