The correct answer is A. Configuration.
To activate cost centre and cost category feature, you need to go to Configuration > Accounting > Cost Center and Cost Category. Then, you need to select the checkbox next to “Activate Cost Center and Cost Category”.
Option B, F11 features, is not correct because F11 features are used to access additional functionality in SAP. Option C, Group creation, is not correct because group creation is used to create groups of users. Option D, Voucher creation, is not correct because voucher creation is used to create vouchers for payments.
I hope this helps! Let me know if you have any other questions.