Which of the following security models dictates that subjects can only access objects through applications?

Which of the following security models dictates that subjects can only access objects through
applications?

A.
Biba model

B.
Bell-LaPadula

C.
Clark-Wilson

D.
Biba-Clark model

Explanation:
The Clark-Wilson security model dictates that subjects can only access objects

no such model as Biba-Clark model.