Problem: Copper Corporation, a C corporation, had gross receipts of $5 million in 2019, $6 million in 2020, and $3 million in 2021. Gold Corporation, a personal service corporation (PSC), had gross receipts of $4 million in 2019, $7 million in 2020, and $5 million in 2021. Which of the corporations will be allowed to use the cash method of accounting in 2022?