Logger.getLogger(fileNamePrefix, category)
The first argument determines the custom named-log prefix, while the second determines the logging category used for filtering. Salesforce documents this API explicitly and states that custom named loggers use the suppliedfileNamePrefixto identify the generated custom log.
Accordingly, if the omitted code segment specifiesloggersFileas thefileNamePrefix, the generated custom-log name begins withcustom-loggersFile, matching option A.
The source question, however, omits the actual referenced logger configuration and code segment. Therefore, the file itself does not provide enough visible information to deriveloggersFileindependently; the answer depends on the configuration that was evidently present in the original question version. The selected answer is consistent with Salesforce logger naming semantics and the source ' s marked answer.
Study Guide reference:Application Development -dw.system.Logger,getLogger(fileNamePrefix, category), named custom logs, categories, and custom log-file naming.