Which of the following could be the cause of an adverse sales volume variance for a company that sells summer products? 1. The company offers discounts on sales prices in order to maintain business. ii. Poor weather leads to a reduction in sales. iii. A strike in the factory causes a shortage of finished goods. (i) and (ii) only (i). (ii) and (iii) only (i) and (iii) only (ii) and (ii) only