In the * (star) property of the Bell-LaPadula model,

A.
Subjects cannot read from their same level of security.

B.
Subjects cannot read from a higher level of security relative to their
level of security.

C.
Subjects cannot read from a lower level of security relative to their
level of security.

D.
Subjects cannot write to a lower level of security relative to their level
of security.

Explanation:
The correct answer by definition of the star property.