Refer to the information below to answer the question. In a Multilevel Security (MLS) system, the following sensitivity labels are used in increasing levels of sensitivity: restricted, confidential, s

User A's clearance level is at or below File 3's classification, so the Bell-LaPadula write-down restriction does not apply, meaning User A is permitted to write to File 3.

User B's clearance level does not exceed File 3's sensitivity label in a way that triggers the no-write-down rule, so User B is not prohibited from writing to File 3 under Bell-LaPadula.

User C's clearance level is not higher than File 3's classification, so the *-property does not prevent User C from writing to File 3 in the Bell-LaPadula model.

In Bell-LaPadula, the *-property (no write-down rule) prohibits a subject from writing to any object whose sensitivity label is lower than the subject's clearance level. User D holds the highest clearance (top secret), and File 3 is classified at a lower sensitivity level, meaning User D cannot write down to File 3 without violating the confidentiality model's core principle of preventing information flow from higher to lower classifications.