1. Which of the following statements about materiality are correct?(1) Information is material if its omission or misstatement could influence the economic decisions of users of the financial statements.(2) Materiality is based on the auditor's experience and judgement.(3) Materiality is always based on revenue.(4) Materiality should only be calculated at the planning stage of the audit.
选项：

A:(1), (2) and (3);
B: (1), (3) and (4);
C: (1) and (2);
D:(2) and (4)