Which situation presents a valid reason for reducing the severity of vulnerability?
A. A Medium severity Link Injection vulnerability should be reduced when it only occurs on a login page.
B. A High severity SQL Injection vulnerability should be reduced when the affected database is read only.
C. A High severity Cross-Site Scripting vulnerability is confirmed to be a Reflected XSS and would require user authentication to be exploited.
D. A High severity Unencrypted Login Request vulnerability should be reduced when the application is using a database that is encrypted with Triple DES (Data Encryption Standard) and a 168 bit key.