正解:B
Multiple overwriting involves writing over the data several times with different patterns, making it extremely difficult to recover the original data. This is considered the best method for securely wiping sensitive information from storage media that will be reused, as it ensures that the data is not recoverable and that the confidentiality of the information is protected.
Reference:
ISACA. (2021). 2021 CISA Review Manual, 27th Edition. ISACA. (Chapter 10, Information Systems Operations, Maintenance, and Service Management)