The property that states, Reading or writing is permitted at a particular
level of sensitivity, but not to either higher or lower levels of sensitivity

is called the:

A.
Strong * (star) Property.

B.
Simple * (star) Property.

C.
* (star) Security Property.

D.
Discretionary Security Property.

Explanation:
The correct answer is “Strong * (star) Property”.
* Answer “the Discretionary Security Property” specifies discretionary access control in the BellLaPadula model by the use of an access matrix.
* Answer “Simple * (star) Property” is distracter.
* Answer “* (star) Security Property”, in the Bell-LaPadula model, states, The writing of information
by a subject at a higher level of sensitivity to an object at a lower level of sensitively is not
permitted (no write down).