Which of the following staternents relating to audit testing is most correci? A. Dual purpose tests are especially effective when control risk is assessed as being high. B. Substantive tests of balances are preferred over substantive tests of transactions when auditing Balance Sheet accounts characterised by marry relatively small transactions, only a small proportion of which make up the ending balance (e g, accounts receivable, inventory). Required: Answer in the space below: 1. Which of the two options (A or B) is correct. ii. Why the response selected is correct. iii. Why the response not selected is incorrect