Carol and Denise are partners, with profits and losses divided in the ratio $2:1$. Denise’s current account showed these balances: on 1 May 2021 $2000$ debit; on 1 May 2022 $7000$ credit. She took no drawings over the year. What total profit did the partnership earn in the year ended 30 April 2022?
- A$9000
- B$15\,000
- C$18\,000
- D$27\,000