Exam SPLK-1005 topic 1 question 5 discussion

A user has been asked to mask some sensitive data without tampering with the structure of the file /var/log/purchases/transactions.log that has the following format:
2020-01-01 00:01:20 User=bob SuperSecretNumber=123456789012 Operation=purchase
2020-01-01 16:15:32 User=alice SuperSecretNumber=123456789012 Operation=purchase
Which of the stanzas below will achieve this?