In relation to a firm's use of going concern as the basis, arrange the following in the correct sequence. 1. Conclude on appropriateness of use of going concern as basis II. Identify the presence of events or conditions III. Perform additional audit procedures IV. Evaluate whether sufficient appropriate audit evidence is obtained a. IV, III, II and I b. II, III, IV and I c. III, IV, I and II d. I, II, III and IV