The following reaction mechanism contains error. Which of the following statements correctly describes the curved arrows consistent with the reaction? 
Definitions:
Payments
Transactions by individuals or entities to transfer money in exchange for goods or services.
Overhead Expenses
The ongoing expenses associated with running a business that are not directly tied to the production of goods or services.
Mark-up
An extra charge applied to the base cost of products to accommodate for overheads and earnings, culminating in the final asking price.
Selling Price
The amount of money for which an item or service is sold to the buyer.
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