Which of the following statements describe the correct rules for the accounting method generally required for corporations? Accrual if the corporation had average sales (gross receipts) for the past three years of less than $1 million. Cash if the business is a personal service business with over $15 million in sales. Accrual if the corporation has more than $26 million in average annual sales for the past three years. Accrual if the business is a service company and has over 51 million in sales