A Customer of the Bank for Which You Work as Chief

A customer of the bank for which you work as Chief Systems Analyst is suing your bank.The customer alleges that money apparently withdrawn through an automated teller machine from his account must have been removed through a bank error,since he did not do so and no one knows his identification number nor has access to his card.You are to testify as to the security processes in the bank's computer system and the accuracy of the computerized automated teller machine's records.In this role you are called upon as an

A) expert witness; you will be giving direct evidence at trial.
B) expert witness; you will be giving opinion evidence at trial.
C) expert witness; you will be giving hearsay evidence at trial.
D) ordinary witness; you will be giving opinion evidence at trial.
E) ordinary witness; you will be giving direct evidence at trial.